Home / 499,472,341.90-749,208,512.85-212,220,681.10

Finding the Fourth Proportional to 499,472,341.90, 749,208,512.85 and 212,220,681.10

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Solution

The fourth proportional to 499,472,341.90, 749,208,512.85 and 212,220,681.10 is: 318,331,021.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,472,341.90 : 749,208,512.85 = 212,220,681.10 : x
  2. Step 2: Convert to fraction form
    499,472,341.90/749,208,512.85 = 212,220,681.10/x
  3. Step 3: Cross multiply
    499,472,341.90x = 749,208,512.85 × 212,220,681.10
  4. Step 4: Simplify right side
    499,472,341.90x = 158,997,540,882,945,088
  5. Step 5: Solve for x
    x = 158,997,540,882,945,088/499,472,341.90
  6. Step 6: Final answer
    x = 318,331,021.65

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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.