Home / 852,755,581.20-1,278,939,996.90-386,108,947.62

Finding the Fourth Proportional to 852,755,581.20, 1,278,939,996.90 and 386,108,947.62

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Solution

The fourth proportional to 852,755,581.20, 1,278,939,996.90 and 386,108,947.62 is: 579,075,865.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,755,581.20 : 1,278,939,996.90 = 386,108,947.62 : x
  2. Step 2: Convert to fraction form
    852,755,581.20/1,278,939,996.90 = 386,108,947.62/x
  3. Step 3: Cross multiply
    852,755,581.20x = 1,278,939,996.90 × 386,108,947.62
  4. Step 4: Simplify right side
    852,755,581.20x = 493,810,176,272,185,088
  5. Step 5: Solve for x
    x = 493,810,176,272,185,088/852,755,581.20
  6. Step 6: Final answer
    x = 579,075,865.53

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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.