Home / 151,389,419.16-208,917,482.58-81,774,800.73

Finding the Fourth Proportional to 151,389,419.16, 208,917,482.58 and 81,774,800.73

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Solution

The fourth proportional to 151,389,419.16, 208,917,482.58 and 81,774,800.73 is: 112,849,270.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,389,419.16 : 208,917,482.58 = 81,774,800.73 : x
  2. Step 2: Convert to fraction form
    151,389,419.16/208,917,482.58 = 81,774,800.73/x
  3. Step 3: Cross multiply
    151,389,419.16x = 208,917,482.58 × 81,774,800.73
  4. Step 4: Simplify right side
    151,389,419.16x = 17,084,185,506,992,748
  5. Step 5: Solve for x
    x = 17,084,185,506,992,748/151,389,419.16
  6. Step 6: Final answer
    x = 112,849,270.46

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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.