Home / 153,071,569.78-211,232,681.93-90,367,865.73

Finding the Fourth Proportional to 153,071,569.78, 211,232,681.93 and 90,367,865.73

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Solution

The fourth proportional to 153,071,569.78, 211,232,681.93 and 90,367,865.73 is: 124,704,062.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,071,569.78 : 211,232,681.93 = 90,367,865.73 : x
  2. Step 2: Convert to fraction form
    153,071,569.78/211,232,681.93 = 90,367,865.73/x
  3. Step 3: Cross multiply
    153,071,569.78x = 211,232,681.93 × 90,367,865.73
  4. Step 4: Simplify right side
    153,071,569.78x = 19,088,646,638,438,040
  5. Step 5: Solve for x
    x = 19,088,646,638,438,040/153,071,569.78
  6. Step 6: Final answer
    x = 124,704,062.72

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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.