Home / 421,663,491.60-632,436,917.40-130,730,672.40

Finding the Fourth Proportional to 421,663,491.60, 632,436,917.40 and 130,730,672.40

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Solution

The fourth proportional to 421,663,491.60, 632,436,917.40 and 130,730,672.40 is: 196,077,927.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,663,491.60 : 632,436,917.40 = 130,730,672.40 : x
  2. Step 2: Convert to fraction form
    421,663,491.60/632,436,917.40 = 130,730,672.40/x
  3. Step 3: Cross multiply
    421,663,491.60x = 632,436,917.40 × 130,730,672.40
  4. Step 4: Simplify right side
    421,663,491.60x = 82,678,903,462,285,264
  5. Step 5: Solve for x
    x = 82,678,903,462,285,264/421,663,491.60
  6. Step 6: Final answer
    x = 196,077,927.33

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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.