Home / 121,359,814.40-182,039,721.60-80,545,145.60

Finding the Fourth Proportional to 121,359,814.40, 182,039,721.60 and 80,545,145.60

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Solution

The fourth proportional to 121,359,814.40, 182,039,721.60 and 80,545,145.60 is: 120,817,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,359,814.40 : 182,039,721.60 = 80,545,145.60 : x
  2. Step 2: Convert to fraction form
    121,359,814.40/182,039,721.60 = 80,545,145.60/x
  3. Step 3: Cross multiply
    121,359,814.40x = 182,039,721.60 × 80,545,145.60
  4. Step 4: Simplify right side
    121,359,814.40x = 14,662,415,881,255,464
  5. Step 5: Solve for x
    x = 14,662,415,881,255,464/121,359,814.40
  6. Step 6: Final answer
    x = 120,817,718.40

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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.