Home / 130,745,708.42-180,437,237.84-72,008,357.96

Finding the Fourth Proportional to 130,745,708.42, 180,437,237.84 and 72,008,357.96

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Solution

The fourth proportional to 130,745,708.42, 180,437,237.84 and 72,008,357.96 is: 99,376,028.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,745,708.42 : 180,437,237.84 = 72,008,357.96 : x
  2. Step 2: Convert to fraction form
    130,745,708.42/180,437,237.84 = 72,008,357.96/x
  3. Step 3: Cross multiply
    130,745,708.42x = 180,437,237.84 × 72,008,357.96
  4. Step 4: Simplify right side
    130,745,708.42x = 12,992,989,212,327,492
  5. Step 5: Solve for x
    x = 12,992,989,212,327,492/130,745,708.42
  6. Step 6: Final answer
    x = 99,376,028.24

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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.