Home / 151,389,367.66-208,917,411.47-81,774,749.13

Finding the Fourth Proportional to 151,389,367.66, 208,917,411.47 and 81,774,749.13

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Solution

The fourth proportional to 151,389,367.66, 208,917,411.47 and 81,774,749.13 is: 112,849,199.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,389,367.66 : 208,917,411.47 = 81,774,749.13 : x
  2. Step 2: Convert to fraction form
    151,389,367.66/208,917,411.47 = 81,774,749.13/x
  3. Step 3: Cross multiply
    151,389,367.66x = 208,917,411.47 × 81,774,749.13
  4. Step 4: Simplify right side
    151,389,367.66x = 17,084,168,911,848,234
  5. Step 5: Solve for x
    x = 17,084,168,911,848,234/151,389,367.66
  6. Step 6: Final answer
    x = 112,849,199.23

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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.