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Finding the Fourth Proportional to 29,039,030.39, 40,072,634.39 and 15,807,931.89

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Solution

The fourth proportional to 29,039,030.39, 40,072,634.39 and 15,807,931.89 is: 21,814,277.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,039,030.39 : 40,072,634.39 = 15,807,931.89 : x
  2. Step 2: Convert to fraction form
    29,039,030.39/40,072,634.39 = 15,807,931.89/x
  3. Step 3: Cross multiply
    29,039,030.39x = 40,072,634.39 × 15,807,931.89
  4. Step 4: Simplify right side
    29,039,030.39x = 633,465,475,010,952
  5. Step 5: Solve for x
    x = 633,465,475,010,952/29,039,030.39
  6. Step 6: Final answer
    x = 21,814,277.77

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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.