Home / 870,912,933.60-1,306,369,400.40-655,922,085.60

Finding the Fourth Proportional to 870,912,933.60, 1,306,369,400.40 and 655,922,085.60

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Solution

The fourth proportional to 870,912,933.60, 1,306,369,400.40 and 655,922,085.60 is: 983,883,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,912,933.60 : 1,306,369,400.40 = 655,922,085.60 : x
  2. Step 2: Convert to fraction form
    870,912,933.60/1,306,369,400.40 = 655,922,085.60/x
  3. Step 3: Cross multiply
    870,912,933.60x = 1,306,369,400.40 × 655,922,085.60
  4. Step 4: Simplify right side
    870,912,933.60x = 856,876,541,674,389,504
  5. Step 5: Solve for x
    x = 856,876,541,674,389,504/870,912,933.60
  6. Step 6: Final answer
    x = 983,883,128.40

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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.