Home / 120,771,149.80-181,156,724.70-77,688,999.40

Finding the Fourth Proportional to 120,771,149.80, 181,156,724.70 and 77,688,999.40

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Solution

The fourth proportional to 120,771,149.80, 181,156,724.70 and 77,688,999.40 is: 116,533,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,771,149.80 : 181,156,724.70 = 77,688,999.40 : x
  2. Step 2: Convert to fraction form
    120,771,149.80/181,156,724.70 = 77,688,999.40/x
  3. Step 3: Cross multiply
    120,771,149.80x = 181,156,724.70 × 77,688,999.40
  4. Step 4: Simplify right side
    120,771,149.80x = 14,073,884,676,524,266
  5. Step 5: Solve for x
    x = 14,073,884,676,524,266/120,771,149.80
  6. Step 6: Final answer
    x = 116,533,499.10

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