Home / 151,389,271.50-208,917,278.63-81,774,652.77

Finding the Fourth Proportional to 151,389,271.50, 208,917,278.63 and 81,774,652.77

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Solution

The fourth proportional to 151,389,271.50, 208,917,278.63 and 81,774,652.77 is: 112,849,066.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,389,271.50 : 208,917,278.63 = 81,774,652.77 : x
  2. Step 2: Convert to fraction form
    151,389,271.50/208,917,278.63 = 81,774,652.77/x
  3. Step 3: Cross multiply
    151,389,271.50x = 208,917,278.63 × 81,774,652.77
  4. Step 4: Simplify right side
    151,389,271.50x = 17,084,137,917,212,718
  5. Step 5: Solve for x
    x = 17,084,137,917,212,718/151,389,271.50
  6. Step 6: Final answer
    x = 112,849,066.17

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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.