Home / 699,871,340.40-965,803,737.78-386,598,811.92

Finding the Fourth Proportional to 699,871,340.40, 965,803,737.78 and 386,598,811.92

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Solution

The fourth proportional to 699,871,340.40, 965,803,737.78 and 386,598,811.92 is: 533,496,024.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,871,340.40 : 965,803,737.78 = 386,598,811.92 : x
  2. Step 2: Convert to fraction form
    699,871,340.40/965,803,737.78 = 386,598,811.92/x
  3. Step 3: Cross multiply
    699,871,340.40x = 965,803,737.78 × 386,598,811.92
  4. Step 4: Simplify right side
    699,871,340.40x = 373,378,577,573,643,200
  5. Step 5: Solve for x
    x = 373,378,577,573,643,200/699,871,340.40
  6. Step 6: Final answer
    x = 533,496,024.23

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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.