Home / 799,519,005.60-1,199,278,508.40-390,837,328.80

Finding the Fourth Proportional to 799,519,005.60, 1,199,278,508.40 and 390,837,328.80

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Solution

The fourth proportional to 799,519,005.60, 1,199,278,508.40 and 390,837,328.80 is: 586,255,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    799,519,005.60 : 1,199,278,508.40 = 390,837,328.80 : x
  2. Step 2: Convert to fraction form
    799,519,005.60/1,199,278,508.40 = 390,837,328.80/x
  3. Step 3: Cross multiply
    799,519,005.60x = 1,199,278,508.40 × 390,837,328.80
  4. Step 4: Simplify right side
    799,519,005.60x = 468,722,808,710,304,384
  5. Step 5: Solve for x
    x = 468,722,808,710,304,384/799,519,005.60
  6. Step 6: Final answer
    x = 586,255,993.20

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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.