Home / 79,684,088.40-119,526,132.60-72,881,643.60

Finding the Fourth Proportional to 79,684,088.40, 119,526,132.60 and 72,881,643.60

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Solution

The fourth proportional to 79,684,088.40, 119,526,132.60 and 72,881,643.60 is: 109,322,465.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,684,088.40 : 119,526,132.60 = 72,881,643.60 : x
  2. Step 2: Convert to fraction form
    79,684,088.40/119,526,132.60 = 72,881,643.60/x
  3. Step 3: Cross multiply
    79,684,088.40x = 119,526,132.60 × 72,881,643.60
  4. Step 4: Simplify right side
    79,684,088.40x = 8,711,260,997,039,540
  5. Step 5: Solve for x
    x = 8,711,260,997,039,540/79,684,088.40
  6. Step 6: Final answer
    x = 109,322,465.40

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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.