Home / 912,322,425.24-1,259,031,500.64-515,836,897.92

Finding the Fourth Proportional to 912,322,425.24, 1,259,031,500.64 and 515,836,897.92

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Solution

The fourth proportional to 912,322,425.24, 1,259,031,500.64 and 515,836,897.92 is: 711,869,932.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,322,425.24 : 1,259,031,500.64 = 515,836,897.92 : x
  2. Step 2: Convert to fraction form
    912,322,425.24/1,259,031,500.64 = 515,836,897.92/x
  3. Step 3: Cross multiply
    912,322,425.24x = 1,259,031,500.64 × 515,836,897.92
  4. Step 4: Simplify right side
    912,322,425.24x = 649,454,903,673,700,224
  5. Step 5: Solve for x
    x = 649,454,903,673,700,224/912,322,425.24
  6. Step 6: Final answer
    x = 711,869,932.94

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Double scale
Find fourth proportional to 912,322,426.24, 1,259,031,502.02 and 515,836,898.92
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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.