Home / 145,603,603.20-218,405,404.80-132,423,866.40

Finding the Fourth Proportional to 145,603,603.20, 218,405,404.80 and 132,423,866.40

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Solution

The fourth proportional to 145,603,603.20, 218,405,404.80 and 132,423,866.40 is: 198,635,799.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,603,603.20 : 218,405,404.80 = 132,423,866.40 : x
  2. Step 2: Convert to fraction form
    145,603,603.20/218,405,404.80 = 132,423,866.40/x
  3. Step 3: Cross multiply
    145,603,603.20x = 218,405,404.80 × 132,423,866.40
  4. Step 4: Simplify right side
    145,603,603.20x = 28,922,088,146,273,120
  5. Step 5: Solve for x
    x = 28,922,088,146,273,120/145,603,603.20
  6. Step 6: Final answer
    x = 198,635,799.60

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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.