Home / 143,630,010.30-215,445,015.45-99,792,032.70

Finding the Fourth Proportional to 143,630,010.30, 215,445,015.45 and 99,792,032.70

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Solution

The fourth proportional to 143,630,010.30, 215,445,015.45 and 99,792,032.70 is: 149,688,049.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,630,010.30 : 215,445,015.45 = 99,792,032.70 : x
  2. Step 2: Convert to fraction form
    143,630,010.30/215,445,015.45 = 99,792,032.70/x
  3. Step 3: Cross multiply
    143,630,010.30x = 215,445,015.45 × 99,792,032.70
  4. Step 4: Simplify right side
    143,630,010.30x = 21,499,696,026,838,404
  5. Step 5: Solve for x
    x = 21,499,696,026,838,404/143,630,010.30
  6. Step 6: Final answer
    x = 149,688,049.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.