Home / 130,769,223.68-180,459,324-72,037,382.72

Finding the Fourth Proportional to 130,769,223.68, 180,459,324 and 72,037,382.72

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Solution

The fourth proportional to 130,769,223.68, 180,459,324 and 72,037,382.72 is: 99,410,373.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,769,223.68 : 180,459,324 = 72,037,382.72 : x
  2. Step 2: Convert to fraction form
    130,769,223.68/180,459,324 = 72,037,382.72/x
  3. Step 3: Cross multiply
    130,769,223.68x = 180,459,324 × 72,037,382.72
  4. Step 4: Simplify right side
    130,769,223.68x = 12,999,817,388,380,482
  5. Step 5: Solve for x
    x = 12,999,817,388,380,482/130,769,223.68
  6. Step 6: Final answer
    x = 99,410,373.65

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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.