Home / 1,237,851,237.17-1,856,382,924.88-408,650,487.86

Finding the Fourth Proportional to 1,237,851,237.17, 1,856,382,924.88 and 408,650,487.86

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Solution

The fourth proportional to 1,237,851,237.17, 1,856,382,924.88 and 408,650,487.86 is: 612,845,683.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,851,237.17 : 1,856,382,924.88 = 408,650,487.86 : x
  2. Step 2: Convert to fraction form
    1,237,851,237.17/1,856,382,924.88 = 408,650,487.86/x
  3. Step 3: Cross multiply
    1,237,851,237.17x = 1,856,382,924.88 × 408,650,487.86
  4. Step 4: Simplify right side
    1,237,851,237.17x = 758,611,787,905,142,528
  5. Step 5: Solve for x
    x = 758,611,787,905,142,528/1,237,851,237.17
  6. Step 6: Final answer
    x = 612,845,683.82

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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.