Home / 749,957,225.33-1,035,299,847.67-499,478,453.21

Finding the Fourth Proportional to 749,957,225.33, 1,035,299,847.67 and 499,478,453.21

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Solution

The fourth proportional to 749,957,225.33, 1,035,299,847.67 and 499,478,453.21 is: 689,519,280.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,957,225.33 : 1,035,299,847.67 = 499,478,453.21 : x
  2. Step 2: Convert to fraction form
    749,957,225.33/1,035,299,847.67 = 499,478,453.21/x
  3. Step 3: Cross multiply
    749,957,225.33x = 1,035,299,847.67 × 499,478,453.21
  4. Step 4: Simplify right side
    749,957,225.33x = 517,109,966,524,099,776
  5. Step 5: Solve for x
    x = 517,109,966,524,099,776/749,957,225.33
  6. Step 6: Final answer
    x = 689,519,280.64

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Double scale
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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.