Home / 131,118,688.56-180,953,799.52-72,392,660.40

Finding the Fourth Proportional to 131,118,688.56, 180,953,799.52 and 72,392,660.40

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Solution

The fourth proportional to 131,118,688.56, 180,953,799.52 and 72,392,660.40 is: 99,907,397.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,118,688.56 : 180,953,799.52 = 72,392,660.40 : x
  2. Step 2: Convert to fraction form
    131,118,688.56/180,953,799.52 = 72,392,660.40/x
  3. Step 3: Cross multiply
    131,118,688.56x = 180,953,799.52 × 72,392,660.40
  4. Step 4: Simplify right side
    131,118,688.56x = 13,099,726,956,741,044
  5. Step 5: Solve for x
    x = 13,099,726,956,741,044/131,118,688.56
  6. Step 6: Final answer
    x = 99,907,397.65

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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.