Home / 15,507,312.59-21,399,739.76-9,709,293.71

Finding the Fourth Proportional to 15,507,312.59, 21,399,739.76 and 9,709,293.71

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Solution

The fourth proportional to 15,507,312.59, 21,399,739.76 and 9,709,293.71 is: 13,398,605.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,507,312.59 : 21,399,739.76 = 9,709,293.71 : x
  2. Step 2: Convert to fraction form
    15,507,312.59/21,399,739.76 = 9,709,293.71/x
  3. Step 3: Cross multiply
    15,507,312.59x = 21,399,739.76 × 9,709,293.71
  4. Step 4: Simplify right side
    15,507,312.59x = 207,776,358,647,404.94
  5. Step 5: Solve for x
    x = 207,776,358,647,404.94/15,507,312.59
  6. Step 6: Final answer
    x = 13,398,605.17

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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.