Home / 156,565,938.22-216,048,394.43-90,490,716.14

Finding the Fourth Proportional to 156,565,938.22, 216,048,394.43 and 90,490,716.14

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Solution

The fourth proportional to 156,565,938.22, 216,048,394.43 and 90,490,716.14 is: 124,869,905.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,565,938.22 : 216,048,394.43 = 90,490,716.14 : x
  2. Step 2: Convert to fraction form
    156,565,938.22/216,048,394.43 = 90,490,716.14/x
  3. Step 3: Cross multiply
    156,565,938.22x = 216,048,394.43 × 90,490,716.14
  4. Step 4: Simplify right side
    156,565,938.22x = 19,550,373,931,673,628
  5. Step 5: Solve for x
    x = 19,550,373,931,673,628/156,565,938.22
  6. Step 6: Final answer
    x = 124,869,905.64

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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.