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Finding the Fourth Proportional to 43,357,746.93, 65,072,398.89 and 21,798,475.89

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Solution

The fourth proportional to 43,357,746.93, 65,072,398.89 and 21,798,475.89 is: 32,715,701.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,357,746.93 : 65,072,398.89 = 21,798,475.89 : x
  2. Step 2: Convert to fraction form
    43,357,746.93/65,072,398.89 = 21,798,475.89/x
  3. Step 3: Cross multiply
    43,357,746.93x = 65,072,398.89 × 21,798,475.89
  4. Step 4: Simplify right side
    43,357,746.93x = 1,418,479,118,308,127.75
  5. Step 5: Solve for x
    x = 1,418,479,118,308,127.75/43,357,746.93
  6. Step 6: Final answer
    x = 32,715,701.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.