Home / 74,854,338.90-103,827,460.03-72,863,403.45

Finding the Fourth Proportional to 74,854,338.90, 103,827,460.03 and 72,863,403.45

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Solution

The fourth proportional to 74,854,338.90, 103,827,460.03 and 72,863,403.45 is: 101,065,913.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,854,338.90 : 103,827,460.03 = 72,863,403.45 : x
  2. Step 2: Convert to fraction form
    74,854,338.90/103,827,460.03 = 72,863,403.45/x
  3. Step 3: Cross multiply
    74,854,338.90x = 103,827,460.03 × 72,863,403.45
  4. Step 4: Simplify right side
    74,854,338.90x = 7,565,222,109,354,639
  5. Step 5: Solve for x
    x = 7,565,222,109,354,639/74,854,338.90
  6. Step 6: Final answer
    x = 101,065,913.09

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.