Home / 156,569,331.80-216,039,733.32-90,495,993.98

Finding the Fourth Proportional to 156,569,331.80, 216,039,733.32 and 90,495,993.98

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Solution

The fourth proportional to 156,569,331.80, 216,039,733.32 and 90,495,993.98 is: 124,869,475.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,569,331.80 : 216,039,733.32 = 90,495,993.98 : x
  2. Step 2: Convert to fraction form
    156,569,331.80/216,039,733.32 = 90,495,993.98/x
  3. Step 3: Cross multiply
    156,569,331.80x = 216,039,733.32 × 90,495,993.98
  4. Step 4: Simplify right side
    156,569,331.80x = 19,550,730,405,967,524
  5. Step 5: Solve for x
    x = 19,550,730,405,967,524/156,569,331.80
  6. Step 6: Final answer
    x = 124,869,475.91

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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.