Home / 156,975,025.50-216,623,419.27-87,360,387.93

Finding the Fourth Proportional to 156,975,025.50, 216,623,419.27 and 87,360,387.93

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Solution

The fourth proportional to 156,975,025.50, 216,623,419.27 and 87,360,387.93 is: 120,556,157.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,975,025.50 : 216,623,419.27 = 87,360,387.93 : x
  2. Step 2: Convert to fraction form
    156,975,025.50/216,623,419.27 = 87,360,387.93/x
  3. Step 3: Cross multiply
    156,975,025.50x = 216,623,419.27 × 87,360,387.93
  4. Step 4: Simplify right side
    156,975,025.50x = 18,924,305,941,931,840
  5. Step 5: Solve for x
    x = 18,924,305,941,931,840/156,975,025.50
  6. Step 6: Final answer
    x = 120,556,157.78

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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.