Home / 442,211,640,337.76-663,383,784,482.01-155,319,130,487.74

Finding the Fourth Proportional to 442,211,640,337.76, 663,383,784,482.01 and 155,319,130,487.74

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Solution

The fourth proportional to 442,211,640,337.76, 663,383,784,482.01 and 155,319,130,487.74 is: 233,001,990,871.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,211,640,337.76 : 663,383,784,482.01 = 155,319,130,487.74 : x
  2. Step 2: Convert to fraction form
    442,211,640,337.76/663,383,784,482.01 = 155,319,130,487.74/x
  3. Step 3: Cross multiply
    442,211,640,337.76x = 663,383,784,482.01 × 155,319,130,487.74
  4. Step 4: Simplify right side
    442,211,640,337.76x = 103,036,192,585,412,090,265,600
  5. Step 5: Solve for x
    x = 103,036,192,585,412,090,265,600/442,211,640,337.76
  6. Step 6: Final answer
    x = 233,001,990,871.87

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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.