Home / 791,559,220.78-1,091,897,886.17-493,684,315.46

Finding the Fourth Proportional to 791,559,220.78, 1,091,897,886.17 and 493,684,315.46

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Solution

The fourth proportional to 791,559,220.78, 1,091,897,886.17 and 493,684,315.46 is: 681,001,302.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,559,220.78 : 1,091,897,886.17 = 493,684,315.46 : x
  2. Step 2: Convert to fraction form
    791,559,220.78/1,091,897,886.17 = 493,684,315.46/x
  3. Step 3: Cross multiply
    791,559,220.78x = 1,091,897,886.17 × 493,684,315.46
  4. Step 4: Simplify right side
    791,559,220.78x = 539,052,860,483,162,112
  5. Step 5: Solve for x
    x = 539,052,860,483,162,112/791,559,220.78
  6. Step 6: Final answer
    x = 681,001,302.66

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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.