Home / 1,543,703,320.47-2,130,342,118.65-838,900,704

Finding the Fourth Proportional to 1,543,703,320.47, 2,130,342,118.65 and 838,900,704

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Solution

The fourth proportional to 1,543,703,320.47, 2,130,342,118.65 and 838,900,704 is: 1,157,700,109.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,703,320.47 : 2,130,342,118.65 = 838,900,704 : x
  2. Step 2: Convert to fraction form
    1,543,703,320.47/2,130,342,118.65 = 838,900,704/x
  3. Step 3: Cross multiply
    1,543,703,320.47x = 2,130,342,118.65 × 838,900,704
  4. Step 4: Simplify right side
    1,543,703,320.47x = 1,787,145,503,096,336,640
  5. Step 5: Solve for x
    x = 1,787,145,503,096,336,640/1,543,703,320.47
  6. Step 6: Final answer
    x = 1,157,700,109.47

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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.