Home / 612,389,980.10-918,584,970.15-440,203,096.10

Finding the Fourth Proportional to 612,389,980.10, 918,584,970.15 and 440,203,096.10

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Solution

The fourth proportional to 612,389,980.10, 918,584,970.15 and 440,203,096.10 is: 660,304,644.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,389,980.10 : 918,584,970.15 = 440,203,096.10 : x
  2. Step 2: Convert to fraction form
    612,389,980.10/918,584,970.15 = 440,203,096.10/x
  3. Step 3: Cross multiply
    612,389,980.10x = 918,584,970.15 × 440,203,096.10
  4. Step 4: Simplify right side
    612,389,980.10x = 404,363,947,890,956,096
  5. Step 5: Solve for x
    x = 404,363,947,890,956,096/612,389,980.10
  6. Step 6: Final answer
    x = 660,304,644.15

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Double scale
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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.