Home / 88,709,130.72-122,538,420-66,847,878.72

Finding the Fourth Proportional to 88,709,130.72, 122,538,420 and 66,847,878.72

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Solution

The fourth proportional to 88,709,130.72, 122,538,420 and 66,847,878.72 is: 92,340,364.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,709,130.72 : 122,538,420 = 66,847,878.72 : x
  2. Step 2: Convert to fraction form
    88,709,130.72/122,538,420 = 66,847,878.72/x
  3. Step 3: Cross multiply
    88,709,130.72x = 122,538,420 × 66,847,878.72
  4. Step 4: Simplify right side
    88,709,130.72x = 8,191,433,438,700,422
  5. Step 5: Solve for x
    x = 8,191,433,438,700,422/88,709,130.72
  6. Step 6: Final answer
    x = 92,340,364.20

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1.5x scale

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.