Home / 749,957,361.81-1,035,300,035.50-499,478,589.69

Finding the Fourth Proportional to 749,957,361.81, 1,035,300,035.50 and 499,478,589.69

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Solution

The fourth proportional to 749,957,361.81, 1,035,300,035.50 and 499,478,589.69 is: 689,519,468.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,957,361.81 : 1,035,300,035.50 = 499,478,589.69 : x
  2. Step 2: Convert to fraction form
    749,957,361.81/1,035,300,035.50 = 499,478,589.69/x
  3. Step 3: Cross multiply
    749,957,361.81x = 1,035,300,035.50 × 499,478,589.69
  4. Step 4: Simplify right side
    749,957,361.81x = 517,110,201,632,405,504
  5. Step 5: Solve for x
    x = 517,110,201,632,405,504/749,957,361.81
  6. Step 6: Final answer
    x = 689,519,468.66

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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.