Home / 15,287,442.16-21,096,037.56-8,318,148.40

Finding the Fourth Proportional to 15,287,442.16, 21,096,037.56 and 8,318,148.40

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Solution

The fourth proportional to 15,287,442.16, 21,096,037.56 and 8,318,148.40 is: 11,478,700.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,287,442.16 : 21,096,037.56 = 8,318,148.40 : x
  2. Step 2: Convert to fraction form
    15,287,442.16/21,096,037.56 = 8,318,148.40/x
  3. Step 3: Cross multiply
    15,287,442.16x = 21,096,037.56 × 8,318,148.40
  4. Step 4: Simplify right side
    15,287,442.16x = 175,479,971,076,053.91
  5. Step 5: Solve for x
    x = 175,479,971,076,053.91/15,287,442.16
  6. Step 6: Final answer
    x = 11,478,700.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.