Home / 870,945,332.40-1,306,417,998.60-782,261,607.60

Finding the Fourth Proportional to 870,945,332.40, 1,306,417,998.60 and 782,261,607.60

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Solution

The fourth proportional to 870,945,332.40, 1,306,417,998.60 and 782,261,607.60 is: 1,173,392,411.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,945,332.40 : 1,306,417,998.60 = 782,261,607.60 : x
  2. Step 2: Convert to fraction form
    870,945,332.40/1,306,417,998.60 = 782,261,607.60/x
  3. Step 3: Cross multiply
    870,945,332.40x = 1,306,417,998.60 × 782,261,607.60
  4. Step 4: Simplify right side
    870,945,332.40x = 1,021,960,643,782,410,496
  5. Step 5: Solve for x
    x = 1,021,960,643,782,410,496/870,945,332.40
  6. Step 6: Final answer
    x = 1,173,392,411.40

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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.