Home / 131,106,697.89-180,927,215.75-72,369,347.68

Finding the Fourth Proportional to 131,106,697.89, 180,927,215.75 and 72,369,347.68

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Solution

The fourth proportional to 131,106,697.89, 180,927,215.75 and 72,369,347.68 is: 99,869,684.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,106,697.89 : 180,927,215.75 = 72,369,347.68 : x
  2. Step 2: Convert to fraction form
    131,106,697.89/180,927,215.75 = 72,369,347.68/x
  3. Step 3: Cross multiply
    131,106,697.89x = 180,927,215.75 × 72,369,347.68
  4. Step 4: Simplify right side
    131,106,697.89x = 13,093,584,581,386,124
  5. Step 5: Solve for x
    x = 13,093,584,581,386,124/131,106,697.89
  6. Step 6: Final answer
    x = 99,869,684.71

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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.