Home / 1,117,145,199.51-1,541,603,398.32-615,343,180.86

Finding the Fourth Proportional to 1,117,145,199.51, 1,541,603,398.32 and 615,343,180.86

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Solution

The fourth proportional to 1,117,145,199.51, 1,541,603,398.32 and 615,343,180.86 is: 849,142,205.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,145,199.51 : 1,541,603,398.32 = 615,343,180.86 : x
  2. Step 2: Convert to fraction form
    1,117,145,199.51/1,541,603,398.32 = 615,343,180.86/x
  3. Step 3: Cross multiply
    1,117,145,199.51x = 1,541,603,398.32 × 615,343,180.86
  4. Step 4: Simplify right side
    1,117,145,199.51x = 948,615,138,746,814,336
  5. Step 5: Solve for x
    x = 948,615,138,746,814,336/1,117,145,199.51
  6. Step 6: Final answer
    x = 849,142,205.65

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Double scale
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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.