Home / 91,499,953.12-126,163,256.40-68,254,723.78

Finding the Fourth Proportional to 91,499,953.12, 126,163,256.40 and 68,254,723.78

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Solution

The fourth proportional to 91,499,953.12, 126,163,256.40 and 68,254,723.78 is: 94,111,941.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,499,953.12 : 126,163,256.40 = 68,254,723.78 : x
  2. Step 2: Convert to fraction form
    91,499,953.12/126,163,256.40 = 68,254,723.78/x
  3. Step 3: Cross multiply
    91,499,953.12x = 126,163,256.40 × 68,254,723.78
  4. Step 4: Simplify right side
    91,499,953.12x = 8,611,238,216,767,318
  5. Step 5: Solve for x
    x = 8,611,238,216,767,318/91,499,953.12
  6. Step 6: Final answer
    x = 94,111,941.30

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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.