Home / 746,761,875.40-1,120,142,813.10-644,641,222.60

Finding the Fourth Proportional to 746,761,875.40, 1,120,142,813.10 and 644,641,222.60

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Solution

The fourth proportional to 746,761,875.40, 1,120,142,813.10 and 644,641,222.60 is: 966,961,833.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,761,875.40 : 1,120,142,813.10 = 644,641,222.60 : x
  2. Step 2: Convert to fraction form
    746,761,875.40/1,120,142,813.10 = 644,641,222.60/x
  3. Step 3: Cross multiply
    746,761,875.40x = 1,120,142,813.10 × 644,641,222.60
  4. Step 4: Simplify right side
    746,761,875.40x = 722,090,232,523,387,264
  5. Step 5: Solve for x
    x = 722,090,232,523,387,264/746,761,875.40
  6. Step 6: Final answer
    x = 966,961,833.90

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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.