Home / 1,500,287,976.66-2,070,397,407.81-840,238,254.66

Finding the Fourth Proportional to 1,500,287,976.66, 2,070,397,407.81 and 840,238,254.66

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Solution

The fourth proportional to 1,500,287,976.66, 2,070,397,407.81 and 840,238,254.66 is: 1,159,528,791.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,287,976.66 : 2,070,397,407.81 = 840,238,254.66 : x
  2. Step 2: Convert to fraction form
    1,500,287,976.66/2,070,397,407.81 = 840,238,254.66/x
  3. Step 3: Cross multiply
    1,500,287,976.66x = 2,070,397,407.81 × 840,238,254.66
  4. Step 4: Simplify right side
    1,500,287,976.66x = 1,739,627,104,390,862,592
  5. Step 5: Solve for x
    x = 1,739,627,104,390,862,592/1,500,287,976.66
  6. Step 6: Final answer
    x = 1,159,528,791.44

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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.