Home / 28,459,169.72-39,273,666.36-15,406,428.32

Finding the Fourth Proportional to 28,459,169.72, 39,273,666.36 and 15,406,428.32

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Solution

The fourth proportional to 28,459,169.72, 39,273,666.36 and 15,406,428.32 is: 21,260,877.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,459,169.72 : 39,273,666.36 = 15,406,428.32 : x
  2. Step 2: Convert to fraction form
    28,459,169.72/39,273,666.36 = 15,406,428.32/x
  3. Step 3: Cross multiply
    28,459,169.72x = 39,273,666.36 × 15,406,428.32
  4. Step 4: Simplify right side
    28,459,169.72x = 605,066,925,638,935.38
  5. Step 5: Solve for x
    x = 605,066,925,638,935.38/28,459,169.72
  6. Step 6: Final answer
    x = 21,260,877.66

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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.