Home / 28,570,376-42,866,918.76-9,142,595.12

Finding the Fourth Proportional to 28,570,376, 42,866,918.76 and 9,142,595.12

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Solution

The fourth proportional to 28,570,376, 42,866,918.76 and 9,142,595.12 is: 13,717,526.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,570,376 : 42,866,918.76 = 9,142,595.12 : x
  2. Step 2: Convert to fraction form
    28,570,376/42,866,918.76 = 9,142,595.12/x
  3. Step 3: Cross multiply
    28,570,376x = 42,866,918.76 × 9,142,595.12
  4. Step 4: Simplify right side
    28,570,376x = 391,914,882,264,612.38
  5. Step 5: Solve for x
    x = 391,914,882,264,612.38/28,570,376
  6. Step 6: Final answer
    x = 13,717,526.23

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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.