Home / 10,420,337.80-15,630,506.70-7,019,115.40

Finding the Fourth Proportional to 10,420,337.80, 15,630,506.70 and 7,019,115.40

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Solution

The fourth proportional to 10,420,337.80, 15,630,506.70 and 7,019,115.40 is: 10,528,673.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,420,337.80 : 15,630,506.70 = 7,019,115.40 : x
  2. Step 2: Convert to fraction form
    10,420,337.80/15,630,506.70 = 7,019,115.40/x
  3. Step 3: Cross multiply
    10,420,337.80x = 15,630,506.70 × 7,019,115.40
  4. Step 4: Simplify right side
    10,420,337.80x = 109,712,330,287,773.19
  5. Step 5: Solve for x
    x = 109,712,330,287,773.19/10,420,337.80
  6. Step 6: Final answer
    x = 10,528,673.10

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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.