Home / 261,241,507.82-360,513,339.65-143,766,838.05

Finding the Fourth Proportional to 261,241,507.82, 360,513,339.65 and 143,766,838.05

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Solution

The fourth proportional to 261,241,507.82, 360,513,339.65 and 143,766,838.05 is: 198,398,268.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,241,507.82 : 360,513,339.65 = 143,766,838.05 : x
  2. Step 2: Convert to fraction form
    261,241,507.82/360,513,339.65 = 143,766,838.05/x
  3. Step 3: Cross multiply
    261,241,507.82x = 360,513,339.65 × 143,766,838.05
  4. Step 4: Simplify right side
    261,241,507.82x = 51,829,862,916,685,608
  5. Step 5: Solve for x
    x = 51,829,862,916,685,608/261,241,507.82
  6. Step 6: Final answer
    x = 198,398,268.91

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1.5x scale

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.