Home / 210,792,220.76-316,278,761.16-81,490,628

Finding the Fourth Proportional to 210,792,220.76, 316,278,761.16 and 81,490,628

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Solution

The fourth proportional to 210,792,220.76, 316,278,761.16 and 81,490,628 is: 122,270,901.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,792,220.76 : 316,278,761.16 = 81,490,628 : x
  2. Step 2: Convert to fraction form
    210,792,220.76/316,278,761.16 = 81,490,628/x
  3. Step 3: Cross multiply
    210,792,220.76x = 316,278,761.16 × 81,490,628
  4. Step 4: Simplify right side
    210,792,220.76x = 25,773,754,869,990,412
  5. Step 5: Solve for x
    x = 25,773,754,869,990,412/210,792,220.76
  6. Step 6: Final answer
    x = 122,270,901.54

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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.