Home / 145,152,031.15-217,728,046.73-130,371,410.35

Finding the Fourth Proportional to 145,152,031.15, 217,728,046.73 and 130,371,410.35

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Solution

The fourth proportional to 145,152,031.15, 217,728,046.73 and 130,371,410.35 is: 195,557,115.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,152,031.15 : 217,728,046.73 = 130,371,410.35 : x
  2. Step 2: Convert to fraction form
    145,152,031.15/217,728,046.73 = 130,371,410.35/x
  3. Step 3: Cross multiply
    145,152,031.15x = 217,728,046.73 × 130,371,410.35
  4. Step 4: Simplify right side
    145,152,031.15x = 28,385,512,524,940,804
  5. Step 5: Solve for x
    x = 28,385,512,524,940,804/145,152,031.15
  6. Step 6: Final answer
    x = 195,557,115.53

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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.