Home / 870,838,621.59-1,201,723,311.67-532,313,853.87

Finding the Fourth Proportional to 870,838,621.59, 1,201,723,311.67 and 532,313,853.87

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Solution

The fourth proportional to 870,838,621.59, 1,201,723,311.67 and 532,313,853.87 is: 734,572,343.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,838,621.59 : 1,201,723,311.67 = 532,313,853.87 : x
  2. Step 2: Convert to fraction form
    870,838,621.59/1,201,723,311.67 = 532,313,853.87/x
  3. Step 3: Cross multiply
    870,838,621.59x = 1,201,723,311.67 × 532,313,853.87
  4. Step 4: Simplify right side
    870,838,621.59x = 639,693,967,323,652,480
  5. Step 5: Solve for x
    x = 639,693,967,323,652,480/870,838,621.59
  6. Step 6: Final answer
    x = 734,572,343.79

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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.