Home / 143,741,386.74-198,363,113.70-81,867,482.58

Finding the Fourth Proportional to 143,741,386.74, 198,363,113.70 and 81,867,482.58

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Solution

The fourth proportional to 143,741,386.74, 198,363,113.70 and 81,867,482.58 is: 112,977,125.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,741,386.74 : 198,363,113.70 = 81,867,482.58 : x
  2. Step 2: Convert to fraction form
    143,741,386.74/198,363,113.70 = 81,867,482.58/x
  3. Step 3: Cross multiply
    143,741,386.74x = 198,363,113.70 × 81,867,482.58
  4. Step 4: Simplify right side
    143,741,386.74x = 16,239,488,755,349,308
  5. Step 5: Solve for x
    x = 16,239,488,755,349,308/143,741,386.74
  6. Step 6: Final answer
    x = 112,977,125.96

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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.