Home / 442,211,640,332.78-663,383,784,474.55-155,319,130,482.77

Finding the Fourth Proportional to 442,211,640,332.78, 663,383,784,474.55 and 155,319,130,482.77

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Solution

The fourth proportional to 442,211,640,332.78, 663,383,784,474.55 and 155,319,130,482.77 is: 233,001,990,864.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,211,640,332.78 : 663,383,784,474.55 = 155,319,130,482.77 : x
  2. Step 2: Convert to fraction form
    442,211,640,332.78/663,383,784,474.55 = 155,319,130,482.77/x
  3. Step 3: Cross multiply
    442,211,640,332.78x = 663,383,784,474.55 × 155,319,130,482.77
  4. Step 4: Simplify right side
    442,211,640,332.78x = 103,036,192,580,956,397,240,320
  5. Step 5: Solve for x
    x = 103,036,192,580,956,397,240,320/442,211,640,332.78
  6. Step 6: Final answer
    x = 233,001,990,864.42

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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.