Home / 8,239,116.80-12,358,675.20-4,871,590.40

Finding the Fourth Proportional to 8,239,116.80, 12,358,675.20 and 4,871,590.40

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Solution

The fourth proportional to 8,239,116.80, 12,358,675.20 and 4,871,590.40 is: 7,307,385.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,239,116.80 : 12,358,675.20 = 4,871,590.40 : x
  2. Step 2: Convert to fraction form
    8,239,116.80/12,358,675.20 = 4,871,590.40/x
  3. Step 3: Cross multiply
    8,239,116.80x = 12,358,675.20 × 4,871,590.40
  4. Step 4: Simplify right side
    8,239,116.80x = 60,206,403,461,038.08
  5. Step 5: Solve for x
    x = 60,206,403,461,038.08/8,239,116.80
  6. Step 6: Final answer
    x = 7,307,385.60

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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.