Home / 151,389,273.65-208,917,281.60-81,774,654.91

Finding the Fourth Proportional to 151,389,273.65, 208,917,281.60 and 81,774,654.91

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Solution

The fourth proportional to 151,389,273.65, 208,917,281.60 and 81,774,654.91 is: 112,849,069.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,389,273.65 : 208,917,281.60 = 81,774,654.91 : x
  2. Step 2: Convert to fraction form
    151,389,273.65/208,917,281.60 = 81,774,654.91/x
  3. Step 3: Cross multiply
    151,389,273.65x = 208,917,281.60 × 81,774,654.91
  4. Step 4: Simplify right side
    151,389,273.65x = 17,084,138,606,950,780
  5. Step 5: Solve for x
    x = 17,084,138,606,950,780/151,389,273.65
  6. Step 6: Final answer
    x = 112,849,069.13

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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.