Home / 870,912,878.10-1,306,369,317.15-655,922,030.10

Finding the Fourth Proportional to 870,912,878.10, 1,306,369,317.15 and 655,922,030.10

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Solution

The fourth proportional to 870,912,878.10, 1,306,369,317.15 and 655,922,030.10 is: 983,883,045.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,912,878.10 : 1,306,369,317.15 = 655,922,030.10 : x
  2. Step 2: Convert to fraction form
    870,912,878.10/1,306,369,317.15 = 655,922,030.10/x
  3. Step 3: Cross multiply
    870,912,878.10x = 1,306,369,317.15 × 655,922,030.10
  4. Step 4: Simplify right side
    870,912,878.10x = 856,876,414,565,378,816
  5. Step 5: Solve for x
    x = 856,876,414,565,378,816/870,912,878.10
  6. Step 6: Final answer
    x = 983,883,045.15

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.