Home / 921,730,539.18-1,381,139,659.89-748,360,314.30

Finding the Fourth Proportional to 921,730,539.18, 1,381,139,659.89 and 748,360,314.30

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Solution

The fourth proportional to 921,730,539.18, 1,381,139,659.89 and 748,360,314.30 is: 1,121,358,212.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,730,539.18 : 1,381,139,659.89 = 748,360,314.30 : x
  2. Step 2: Convert to fraction form
    921,730,539.18/1,381,139,659.89 = 748,360,314.30/x
  3. Step 3: Cross multiply
    921,730,539.18x = 1,381,139,659.89 × 748,360,314.30
  4. Step 4: Simplify right side
    921,730,539.18x = 1,033,590,109,967,475,456
  5. Step 5: Solve for x
    x = 1,033,590,109,967,475,456/921,730,539.18
  6. Step 6: Final answer
    x = 1,121,358,212.66

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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.