Home / 521,520,782,934.60-782,281,174,401.90-496,725,871,638.60

Finding the Fourth Proportional to 521,520,782,934.60, 782,281,174,401.90 and 496,725,871,638.60

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Solution

The fourth proportional to 521,520,782,934.60, 782,281,174,401.90 and 496,725,871,638.60 is: 745,088,807,457.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,782,934.60 : 782,281,174,401.90 = 496,725,871,638.60 : x
  2. Step 2: Convert to fraction form
    521,520,782,934.60/782,281,174,401.90 = 496,725,871,638.60/x
  3. Step 3: Cross multiply
    521,520,782,934.60x = 782,281,174,401.90 × 496,725,871,638.60
  4. Step 4: Simplify right side
    521,520,782,934.60x = 388,579,298,221,251,402,661,888
  5. Step 5: Solve for x
    x = 388,579,298,221,251,402,661,888/521,520,782,934.60
  6. Step 6: Final answer
    x = 745,088,807,457.90

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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.