Home / 144,108,543.72-216,130,399.56-66,310,822.08

Finding the Fourth Proportional to 144,108,543.72, 216,130,399.56 and 66,310,822.08

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Solution

The fourth proportional to 144,108,543.72, 216,130,399.56 and 66,310,822.08 is: 99,451,317.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,108,543.72 : 216,130,399.56 = 66,310,822.08 : x
  2. Step 2: Convert to fraction form
    144,108,543.72/216,130,399.56 = 66,310,822.08/x
  3. Step 3: Cross multiply
    144,108,543.72x = 216,130,399.56 × 66,310,822.08
  4. Step 4: Simplify right side
    144,108,543.72x = 14,331,784,471,302,470
  5. Step 5: Solve for x
    x = 14,331,784,471,302,470/144,108,543.72
  6. Step 6: Final answer
    x = 99,451,317.05

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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.