Home / 131,106,927.15-180,927,531.77-72,369,575.87

Finding the Fourth Proportional to 131,106,927.15, 180,927,531.77 and 72,369,575.87

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Solution

The fourth proportional to 131,106,927.15, 180,927,531.77 and 72,369,575.87 is: 99,869,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,106,927.15 : 180,927,531.77 = 72,369,575.87 : x
  2. Step 2: Convert to fraction form
    131,106,927.15/180,927,531.77 = 72,369,575.87/x
  3. Step 3: Cross multiply
    131,106,927.15x = 180,927,531.77 × 72,369,575.87
  4. Step 4: Simplify right side
    131,106,927.15x = 13,093,648,736,134,362
  5. Step 5: Solve for x
    x = 13,093,648,736,134,362/131,106,927.15
  6. Step 6: Final answer
    x = 99,869,999.40

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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.