Home / 153,382,796.52-211,673,482.80-90,712,616.52

Finding the Fourth Proportional to 153,382,796.52, 211,673,482.80 and 90,712,616.52

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Solution

The fourth proportional to 153,382,796.52, 211,673,482.80 and 90,712,616.52 is: 125,186,500.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,382,796.52 : 211,673,482.80 = 90,712,616.52 : x
  2. Step 2: Convert to fraction form
    153,382,796.52/211,673,482.80 = 90,712,616.52/x
  3. Step 3: Cross multiply
    153,382,796.52x = 211,673,482.80 × 90,712,616.52
  4. Step 4: Simplify right side
    153,382,796.52x = 19,201,455,472,689,216
  5. Step 5: Solve for x
    x = 19,201,455,472,689,216/153,382,796.52
  6. Step 6: Final answer
    x = 125,186,500.11

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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.