Home / 143,010,601.28-197,359,090.08-81,133,547.84

Finding the Fourth Proportional to 143,010,601.28, 197,359,090.08 and 81,133,547.84

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Solution

The fourth proportional to 143,010,601.28, 197,359,090.08 and 81,133,547.84 is: 111,966,826.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,010,601.28 : 197,359,090.08 = 81,133,547.84 : x
  2. Step 2: Convert to fraction form
    143,010,601.28/197,359,090.08 = 81,133,547.84/x
  3. Step 3: Cross multiply
    143,010,601.28x = 197,359,090.08 × 81,133,547.84
  4. Step 4: Simplify right side
    143,010,601.28x = 16,012,443,176,664,552
  5. Step 5: Solve for x
    x = 16,012,443,176,664,552/143,010,601.28
  6. Step 6: Final answer
    x = 111,966,826.47

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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.