Home / 261,151,471.46-360,389,018.69-143,674,281.48

Finding the Fourth Proportional to 261,151,471.46, 360,389,018.69 and 143,674,281.48

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Solution

The fourth proportional to 261,151,471.46, 360,389,018.69 and 143,674,281.48 is: 198,270,501.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,151,471.46 : 360,389,018.69 = 143,674,281.48 : x
  2. Step 2: Convert to fraction form
    261,151,471.46/360,389,018.69 = 143,674,281.48/x
  3. Step 3: Cross multiply
    261,151,471.46x = 360,389,018.69 × 143,674,281.48
  4. Step 4: Simplify right side
    261,151,471.46x = 51,778,633,312,849,664
  5. Step 5: Solve for x
    x = 51,778,633,312,849,664/261,151,471.46
  6. Step 6: Final answer
    x = 198,270,501.88

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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.