Home / 386,310,853.60-579,466,280.40-127,566,008.80

Finding the Fourth Proportional to 386,310,853.60, 579,466,280.40 and 127,566,008.80

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Solution

The fourth proportional to 386,310,853.60, 579,466,280.40 and 127,566,008.80 is: 191,349,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,310,853.60 : 579,466,280.40 = 127,566,008.80 : x
  2. Step 2: Convert to fraction form
    386,310,853.60/579,466,280.40 = 127,566,008.80/x
  3. Step 3: Cross multiply
    386,310,853.60x = 579,466,280.40 × 127,566,008.80
  4. Step 4: Simplify right side
    386,310,853.60x = 73,920,200,624,809,664
  5. Step 5: Solve for x
    x = 73,920,200,624,809,664/386,310,853.60
  6. Step 6: Final answer
    x = 191,349,013.20

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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.