Home / 153,071,568.78-211,232,680.54-90,367,864.72

Finding the Fourth Proportional to 153,071,568.78, 211,232,680.54 and 90,367,864.72

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Solution

The fourth proportional to 153,071,568.78, 211,232,680.54 and 90,367,864.72 is: 124,704,061.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,071,568.78 : 211,232,680.54 = 90,367,864.72 : x
  2. Step 2: Convert to fraction form
    153,071,568.78/211,232,680.54 = 90,367,864.72/x
  3. Step 3: Cross multiply
    153,071,568.78x = 211,232,680.54 × 90,367,864.72
  4. Step 4: Simplify right side
    153,071,568.78x = 19,088,646,299,481,696
  5. Step 5: Solve for x
    x = 19,088,646,299,481,696/153,071,568.78
  6. Step 6: Final answer
    x = 124,704,061.32

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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.