Home / 145,156,989.40-218,059,887.30-121,269,117.40

Finding the Fourth Proportional to 145,156,989.40, 218,059,887.30 and 121,269,117.40

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Solution

The fourth proportional to 145,156,989.40, 218,059,887.30 and 121,269,117.40 is: 182,174,693.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,156,989.40 : 218,059,887.30 = 121,269,117.40 : x
  2. Step 2: Convert to fraction form
    145,156,989.40/218,059,887.30 = 121,269,117.40/x
  3. Step 3: Cross multiply
    145,156,989.40x = 218,059,887.30 × 121,269,117.40
  4. Step 4: Simplify right side
    145,156,989.40x = 26,443,930,073,214,472
  5. Step 5: Solve for x
    x = 26,443,930,073,214,472/145,156,989.40
  6. Step 6: Final answer
    x = 182,174,693.64

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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.