Home / 151,389,368.41-208,917,412.50-81,774,749.88

Finding the Fourth Proportional to 151,389,368.41, 208,917,412.50 and 81,774,749.88

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Solution

The fourth proportional to 151,389,368.41, 208,917,412.50 and 81,774,749.88 is: 112,849,200.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,389,368.41 : 208,917,412.50 = 81,774,749.88 : x
  2. Step 2: Convert to fraction form
    151,389,368.41/208,917,412.50 = 81,774,749.88/x
  3. Step 3: Cross multiply
    151,389,368.41x = 208,917,412.50 × 81,774,749.88
  4. Step 4: Simplify right side
    151,389,368.41x = 17,084,169,152,764,284
  5. Step 5: Solve for x
    x = 17,084,169,152,764,284/151,389,368.41
  6. Step 6: Final answer
    x = 112,849,200.26

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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.