Home / 1,264,990,432.80-1,897,310,689.20-392,191,975.20

Finding the Fourth Proportional to 1,264,990,432.80, 1,897,310,689.20 and 392,191,975.20

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Solution

The fourth proportional to 1,264,990,432.80, 1,897,310,689.20 and 392,191,975.20 is: 588,233,718.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,990,432.80 : 1,897,310,689.20 = 392,191,975.20 : x
  2. Step 2: Convert to fraction form
    1,264,990,432.80/1,897,310,689.20 = 392,191,975.20/x
  3. Step 3: Cross multiply
    1,264,990,432.80x = 1,897,310,689.20 × 392,191,975.20
  4. Step 4: Simplify right side
    1,264,990,432.80x = 744,110,026,765,421,312
  5. Step 5: Solve for x
    x = 744,110,026,765,421,312/1,264,990,432.80
  6. Step 6: Final answer
    x = 588,233,718.98

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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.