Home / 1,585,221,779.76-2,187,475,812.19-870,720,407.87

Finding the Fourth Proportional to 1,585,221,779.76, 2,187,475,812.19 and 870,720,407.87

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Solution

The fourth proportional to 1,585,221,779.76, 2,187,475,812.19 and 870,720,407.87 is: 1,201,522,623.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585,221,779.76 : 2,187,475,812.19 = 870,720,407.87 : x
  2. Step 2: Convert to fraction form
    1,585,221,779.76/2,187,475,812.19 = 870,720,407.87/x
  3. Step 3: Cross multiply
    1,585,221,779.76x = 2,187,475,812.19 × 870,720,407.87
  4. Step 4: Simplify right side
    1,585,221,779.76x = 1,904,679,831,385,943,552
  5. Step 5: Solve for x
    x = 1,904,679,831,385,943,552/1,585,221,779.76
  6. Step 6: Final answer
    x = 1,201,522,623.34

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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.