Home / 8,460,864,751.80-12,691,297,127.70-8,315,745,929.40

Finding the Fourth Proportional to 8,460,864,751.80, 12,691,297,127.70 and 8,315,745,929.40

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Solution

The fourth proportional to 8,460,864,751.80, 12,691,297,127.70 and 8,315,745,929.40 is: 12,473,618,894.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,460,864,751.80 : 12,691,297,127.70 = 8,315,745,929.40 : x
  2. Step 2: Convert to fraction form
    8,460,864,751.80/12,691,297,127.70 = 8,315,745,929.40/x
  3. Step 3: Cross multiply
    8,460,864,751.80x = 12,691,297,127.70 × 8,315,745,929.40
  4. Step 4: Simplify right side
    8,460,864,751.80x = 105,537,602,428,477,194,240
  5. Step 5: Solve for x
    x = 105,537,602,428,477,194,240/8,460,864,751.80
  6. Step 6: Final answer
    x = 12,473,618,894.10

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.