Home / 936,820,902.32-1,292,820,496.96-519,140,161.20

Finding the Fourth Proportional to 936,820,902.32, 1,292,820,496.96 and 519,140,161.20

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Solution

The fourth proportional to 936,820,902.32, 1,292,820,496.96 and 519,140,161.20 is: 716,417,662.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,820,902.32 : 1,292,820,496.96 = 519,140,161.20 : x
  2. Step 2: Convert to fraction form
    936,820,902.32/1,292,820,496.96 = 519,140,161.20/x
  3. Step 3: Cross multiply
    936,820,902.32x = 1,292,820,496.96 × 519,140,161.20
  4. Step 4: Simplify right side
    936,820,902.32x = 671,155,041,194,478,464
  5. Step 5: Solve for x
    x = 671,155,041,194,478,464/936,820,902.32
  6. Step 6: Final answer
    x = 716,417,662.68

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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.