Home / 74,892,290.40-112,338,435.60-42,643,663.20

Finding the Fourth Proportional to 74,892,290.40, 112,338,435.60 and 42,643,663.20

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Solution

The fourth proportional to 74,892,290.40, 112,338,435.60 and 42,643,663.20 is: 63,965,494.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,892,290.40 : 112,338,435.60 = 42,643,663.20 : x
  2. Step 2: Convert to fraction form
    74,892,290.40/112,338,435.60 = 42,643,663.20/x
  3. Step 3: Cross multiply
    74,892,290.40x = 112,338,435.60 × 42,643,663.20
  4. Step 4: Simplify right side
    74,892,290.40x = 4,790,522,412,141,290
  5. Step 5: Solve for x
    x = 4,790,522,412,141,290/74,892,290.40
  6. Step 6: Final answer
    x = 63,965,494.80

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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.