Home / 151,389,274.65-208,917,282.98-81,774,655.91

Finding the Fourth Proportional to 151,389,274.65, 208,917,282.98 and 81,774,655.91

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Solution

The fourth proportional to 151,389,274.65, 208,917,282.98 and 81,774,655.91 is: 112,849,070.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,389,274.65 : 208,917,282.98 = 81,774,655.91 : x
  2. Step 2: Convert to fraction form
    151,389,274.65/208,917,282.98 = 81,774,655.91/x
  3. Step 3: Cross multiply
    151,389,274.65x = 208,917,282.98 × 81,774,655.91
  4. Step 4: Simplify right side
    151,389,274.65x = 17,084,138,929,341,598
  5. Step 5: Solve for x
    x = 17,084,138,929,341,598/151,389,274.65
  6. Step 6: Final answer
    x = 112,849,070.51

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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.