Home / 145,672,983.10-218,509,474.65-99,756,480.70

Finding the Fourth Proportional to 145,672,983.10, 218,509,474.65 and 99,756,480.70

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Solution

The fourth proportional to 145,672,983.10, 218,509,474.65 and 99,756,480.70 is: 149,634,721.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,672,983.10 : 218,509,474.65 = 99,756,480.70 : x
  2. Step 2: Convert to fraction form
    145,672,983.10/218,509,474.65 = 99,756,480.70/x
  3. Step 3: Cross multiply
    145,672,983.10x = 218,509,474.65 × 99,756,480.70
  4. Step 4: Simplify right side
    145,672,983.10x = 21,797,736,190,689,864
  5. Step 5: Solve for x
    x = 21,797,736,190,689,864/145,672,983.10
  6. Step 6: Final answer
    x = 149,634,721.05

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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.