Home / 870,912,869.10-1,306,369,303.65-655,922,021.10

Finding the Fourth Proportional to 870,912,869.10, 1,306,369,303.65 and 655,922,021.10

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Solution

The fourth proportional to 870,912,869.10, 1,306,369,303.65 and 655,922,021.10 is: 983,883,031.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,912,869.10 : 1,306,369,303.65 = 655,922,021.10 : x
  2. Step 2: Convert to fraction form
    870,912,869.10/1,306,369,303.65 = 655,922,021.10/x
  3. Step 3: Cross multiply
    870,912,869.10x = 1,306,369,303.65 × 655,922,021.10
  4. Step 4: Simplify right side
    870,912,869.10x = 856,876,393,953,107,712
  5. Step 5: Solve for x
    x = 856,876,393,953,107,712/870,912,869.10
  6. Step 6: Final answer
    x = 983,883,031.65

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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.