Home / 42,710,537.60-64,086,801.60-19,987,510.40

Finding the Fourth Proportional to 42,710,537.60, 64,086,801.60 and 19,987,510.40

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Solution

The fourth proportional to 42,710,537.60, 64,086,801.60 and 19,987,510.40 is: 29,991,090.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,710,537.60 : 64,086,801.60 = 19,987,510.40 : x
  2. Step 2: Convert to fraction form
    42,710,537.60/64,086,801.60 = 19,987,510.40/x
  3. Step 3: Cross multiply
    42,710,537.60x = 64,086,801.60 × 19,987,510.40
  4. Step 4: Simplify right side
    42,710,537.60x = 1,280,935,613,482,736.50
  5. Step 5: Solve for x
    x = 1,280,935,613,482,736.50/42,710,537.60
  6. Step 6: Final answer
    x = 29,991,090.85

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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.