Home / 65,868,536.60-90,939,897.79-42,387,869.25

Finding the Fourth Proportional to 65,868,536.60, 90,939,897.79 and 42,387,869.25

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Solution

The fourth proportional to 65,868,536.60, 90,939,897.79 and 42,387,869.25 is: 58,521,848.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,868,536.60 : 90,939,897.79 = 42,387,869.25 : x
  2. Step 2: Convert to fraction form
    65,868,536.60/90,939,897.79 = 42,387,869.25/x
  3. Step 3: Cross multiply
    65,868,536.60x = 90,939,897.79 × 42,387,869.25
  4. Step 4: Simplify right side
    65,868,536.60x = 3,854,748,497,280,637
  5. Step 5: Solve for x
    x = 3,854,748,497,280,637/65,868,536.60
  6. Step 6: Final answer
    x = 58,521,848.15

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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.