Home / 15,316,128.27-21,136,699.95-8,441,053.20

Finding the Fourth Proportional to 15,316,128.27, 21,136,699.95 and 8,441,053.20

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Solution

The fourth proportional to 15,316,128.27, 21,136,699.95 and 8,441,053.20 is: 11,648,897.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,316,128.27 : 21,136,699.95 = 8,441,053.20 : x
  2. Step 2: Convert to fraction form
    15,316,128.27/21,136,699.95 = 8,441,053.20/x
  3. Step 3: Cross multiply
    15,316,128.27x = 21,136,699.95 × 8,441,053.20
  4. Step 4: Simplify right side
    15,316,128.27x = 178,416,008,750,387.31
  5. Step 5: Solve for x
    x = 178,416,008,750,387.31/15,316,128.27
  6. Step 6: Final answer
    x = 11,648,897.53

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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.