Home / 421,663,477.60-632,436,896.40-130,730,658.40

Finding the Fourth Proportional to 421,663,477.60, 632,436,896.40 and 130,730,658.40

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Solution

The fourth proportional to 421,663,477.60, 632,436,896.40 and 130,730,658.40 is: 196,077,906.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,663,477.60 : 632,436,896.40 = 130,730,658.40 : x
  2. Step 2: Convert to fraction form
    421,663,477.60/632,436,896.40 = 130,730,658.40/x
  3. Step 3: Cross multiply
    421,663,477.60x = 632,436,896.40 × 130,730,658.40
  4. Step 4: Simplify right side
    421,663,477.60x = 82,678,891,862,824,592
  5. Step 5: Solve for x
    x = 82,678,891,862,824,592/421,663,477.60
  6. Step 6: Final answer
    x = 196,077,906.33

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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.