Home / 640,965,121.80-961,447,682.70-597,966,952.20

Finding the Fourth Proportional to 640,965,121.80, 961,447,682.70 and 597,966,952.20

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Solution

The fourth proportional to 640,965,121.80, 961,447,682.70 and 597,966,952.20 is: 896,950,428.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,965,121.80 : 961,447,682.70 = 597,966,952.20 : x
  2. Step 2: Convert to fraction form
    640,965,121.80/961,447,682.70 = 597,966,952.20/x
  3. Step 3: Cross multiply
    640,965,121.80x = 961,447,682.70 × 597,966,952.20
  4. Step 4: Simplify right side
    640,965,121.80x = 574,913,940,523,871,744
  5. Step 5: Solve for x
    x = 574,913,940,523,871,744/640,965,121.80
  6. Step 6: Final answer
    x = 896,950,428.30

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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.