Home / 756,337,856.38-1,043,746,243.80-408,657,344.38

Finding the Fourth Proportional to 756,337,856.38, 1,043,746,243.80 and 408,657,344.38

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Solution

The fourth proportional to 756,337,856.38, 1,043,746,243.80 and 408,657,344.38 is: 563,947,136.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,337,856.38 : 1,043,746,243.80 = 408,657,344.38 : x
  2. Step 2: Convert to fraction form
    756,337,856.38/1,043,746,243.80 = 408,657,344.38/x
  3. Step 3: Cross multiply
    756,337,856.38x = 1,043,746,243.80 × 408,657,344.38
  4. Step 4: Simplify right side
    756,337,856.38x = 426,534,568,197,908,032
  5. Step 5: Solve for x
    x = 426,534,568,197,908,032/756,337,856.38
  6. Step 6: Final answer
    x = 563,947,136.32

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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.