Home / 74,729,931.20-112,178,877.60-57,765,809.60

Finding the Fourth Proportional to 74,729,931.20, 112,178,877.60 and 57,765,809.60

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Solution

The fourth proportional to 74,729,931.20, 112,178,877.60 and 57,765,809.60 is: 86,713,631.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,729,931.20 : 112,178,877.60 = 57,765,809.60 : x
  2. Step 2: Convert to fraction form
    74,729,931.20/112,178,877.60 = 57,765,809.60/x
  3. Step 3: Cross multiply
    74,729,931.20x = 112,178,877.60 × 57,765,809.60
  4. Step 4: Simplify right side
    74,729,931.20x = 6,480,103,684,583,305
  5. Step 5: Solve for x
    x = 6,480,103,684,583,305/74,729,931.20
  6. Step 6: Final answer
    x = 86,713,631.08

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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.