Home / 768,833,666.92-1,060,140,304.74-489,933,430.12

Finding the Fourth Proportional to 768,833,666.92, 1,060,140,304.74 and 489,933,430.12

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Solution

The fourth proportional to 768,833,666.92, 1,060,140,304.74 and 489,933,430.12 is: 675,566,378.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,833,666.92 : 1,060,140,304.74 = 489,933,430.12 : x
  2. Step 2: Convert to fraction form
    768,833,666.92/1,060,140,304.74 = 489,933,430.12/x
  3. Step 3: Cross multiply
    768,833,666.92x = 1,060,140,304.74 × 489,933,430.12
  4. Step 4: Simplify right side
    768,833,666.92x = 519,398,175,909,730,304
  5. Step 5: Solve for x
    x = 519,398,175,909,730,304/768,833,666.92
  6. Step 6: Final answer
    x = 675,566,378.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.