Home / 260,684,355-391,076,886.42-99,113,728.44

Finding the Fourth Proportional to 260,684,355, 391,076,886.42 and 99,113,728.44

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Solution

The fourth proportional to 260,684,355, 391,076,886.42 and 99,113,728.44 is: 148,689,737.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,684,355 : 391,076,886.42 = 99,113,728.44 : x
  2. Step 2: Convert to fraction form
    260,684,355/391,076,886.42 = 99,113,728.44/x
  3. Step 3: Cross multiply
    260,684,355x = 391,076,886.42 × 99,113,728.44
  4. Step 4: Simplify right side
    260,684,355x = 38,761,088,319,792,608
  5. Step 5: Solve for x
    x = 38,761,088,319,792,608/260,684,355
  6. Step 6: Final answer
    x = 148,689,737.52

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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.