Home / 74,945,126.80-112,417,690.20-57,918,019.60

Finding the Fourth Proportional to 74,945,126.80, 112,417,690.20 and 57,918,019.60

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Solution

The fourth proportional to 74,945,126.80, 112,417,690.20 and 57,918,019.60 is: 86,877,029.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,945,126.80 : 112,417,690.20 = 57,918,019.60 : x
  2. Step 2: Convert to fraction form
    74,945,126.80/112,417,690.20 = 57,918,019.60/x
  3. Step 3: Cross multiply
    74,945,126.80x = 112,417,690.20 × 57,918,019.60
  4. Step 4: Simplify right side
    74,945,126.80x = 6,511,009,984,390,328
  5. Step 5: Solve for x
    x = 6,511,009,984,390,328/74,945,126.80
  6. Step 6: Final answer
    x = 86,877,029.40

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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.