Home / 1,500,287,973.16-2,070,397,402.98-840,238,251.16

Finding the Fourth Proportional to 1,500,287,973.16, 2,070,397,402.98 and 840,238,251.16

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Solution

The fourth proportional to 1,500,287,973.16, 2,070,397,402.98 and 840,238,251.16 is: 1,159,528,786.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,287,973.16 : 2,070,397,402.98 = 840,238,251.16 : x
  2. Step 2: Convert to fraction form
    1,500,287,973.16/2,070,397,402.98 = 840,238,251.16/x
  3. Step 3: Cross multiply
    1,500,287,973.16x = 2,070,397,402.98 × 840,238,251.16
  4. Step 4: Simplify right side
    1,500,287,973.16x = 1,739,627,093,086,120,960
  5. Step 5: Solve for x
    x = 1,739,627,093,086,120,960/1,500,287,973.16
  6. Step 6: Final answer
    x = 1,159,528,786.61

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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.