Home / 750,762,004.70-1,126,143,007.05-521,179,492.70

Finding the Fourth Proportional to 750,762,004.70, 1,126,143,007.05 and 521,179,492.70

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Solution

The fourth proportional to 750,762,004.70, 1,126,143,007.05 and 521,179,492.70 is: 781,769,239.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,762,004.70 : 1,126,143,007.05 = 521,179,492.70 : x
  2. Step 2: Convert to fraction form
    750,762,004.70/1,126,143,007.05 = 521,179,492.70/x
  3. Step 3: Cross multiply
    750,762,004.70x = 1,126,143,007.05 × 521,179,492.70
  4. Step 4: Simplify right side
    750,762,004.70x = 586,922,641,121,971,456
  5. Step 5: Solve for x
    x = 586,922,641,121,971,456/750,762,004.70
  6. Step 6: Final answer
    x = 781,769,239.05

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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.