Home / 130,757,268.86-180,445,025.58-72,019,935.80

Finding the Fourth Proportional to 130,757,268.86, 180,445,025.58 and 72,019,935.80

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Solution

The fourth proportional to 130,757,268.86, 180,445,025.58 and 72,019,935.80 is: 99,387,508.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,757,268.86 : 180,445,025.58 = 72,019,935.80 : x
  2. Step 2: Convert to fraction form
    130,757,268.86/180,445,025.58 = 72,019,935.80/x
  3. Step 3: Cross multiply
    130,757,268.86x = 180,445,025.58 × 72,019,935.80
  4. Step 4: Simplify right side
    130,757,268.86x = 12,995,639,157,700,958
  5. Step 5: Solve for x
    x = 12,995,639,157,700,958/130,757,268.86
  6. Step 6: Final answer
    x = 99,387,508.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.