Home / 156,565,893.84-216,048,333.34-90,490,671.78

Finding the Fourth Proportional to 156,565,893.84, 216,048,333.34 and 90,490,671.78

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Solution

The fourth proportional to 156,565,893.84, 216,048,333.34 and 90,490,671.78 is: 124,869,844.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,565,893.84 : 216,048,333.34 = 90,490,671.78 : x
  2. Step 2: Convert to fraction form
    156,565,893.84/216,048,333.34 = 90,490,671.78/x
  3. Step 3: Cross multiply
    156,565,893.84x = 216,048,333.34 × 90,490,671.78
  4. Step 4: Simplify right side
    156,565,893.84x = 19,550,358,820,188,904
  5. Step 5: Solve for x
    x = 19,550,358,820,188,904/156,565,893.84
  6. Step 6: Final answer
    x = 124,869,844.52

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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.