Home / 145,490,475.09-218,332,100.13-79,957,378.20

Finding the Fourth Proportional to 145,490,475.09, 218,332,100.13 and 79,957,378.20

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Solution

The fourth proportional to 145,490,475.09, 218,332,100.13 and 79,957,378.20 is: 119,989,039.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,490,475.09 : 218,332,100.13 = 79,957,378.20 : x
  2. Step 2: Convert to fraction form
    145,490,475.09/218,332,100.13 = 79,957,378.20/x
  3. Step 3: Cross multiply
    145,490,475.09x = 218,332,100.13 × 79,957,378.20
  4. Step 4: Simplify right side
    145,490,475.09x = 17,457,262,303,294,680
  5. Step 5: Solve for x
    x = 17,457,262,303,294,680/145,490,475.09
  6. Step 6: Final answer
    x = 119,989,039.09

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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.