Home / 1,199,789,036.80-1,799,683,555.20-381,984,006.40

Finding the Fourth Proportional to 1,199,789,036.80, 1,799,683,555.20 and 381,984,006.40

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Solution

The fourth proportional to 1,199,789,036.80, 1,799,683,555.20 and 381,984,006.40 is: 572,976,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,199,789,036.80 : 1,799,683,555.20 = 381,984,006.40 : x
  2. Step 2: Convert to fraction form
    1,199,789,036.80/1,799,683,555.20 = 381,984,006.40/x
  3. Step 3: Cross multiply
    1,199,789,036.80x = 1,799,683,555.20 × 381,984,006.40
  4. Step 4: Simplify right side
    1,199,789,036.80x = 687,450,334,667,491,584
  5. Step 5: Solve for x
    x = 687,450,334,667,491,584/1,199,789,036.80
  6. Step 6: Final answer
    x = 572,976,009.60

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1.5x scale

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.