Home / 79,009,303.60-118,765,897.80-74,474,340.40

Finding the Fourth Proportional to 79,009,303.60, 118,765,897.80 and 74,474,340.40

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Solution

The fourth proportional to 79,009,303.60, 118,765,897.80 and 74,474,340.40 is: 111,948,992.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,009,303.60 : 118,765,897.80 = 74,474,340.40 : x
  2. Step 2: Convert to fraction form
    79,009,303.60/118,765,897.80 = 74,474,340.40/x
  3. Step 3: Cross multiply
    79,009,303.60x = 118,765,897.80 × 74,474,340.40
  4. Step 4: Simplify right side
    79,009,303.60x = 8,845,011,900,668,812
  5. Step 5: Solve for x
    x = 8,845,011,900,668,812/79,009,303.60
  6. Step 6: Final answer
    x = 111,948,992.05

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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.