Home / 88,109,820.09-121,437,640.26-64,538,278.74

Finding the Fourth Proportional to 88,109,820.09, 121,437,640.26 and 64,538,278.74

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Solution

The fourth proportional to 88,109,820.09, 121,437,640.26 and 64,538,278.74 is: 88,950,088.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,109,820.09 : 121,437,640.26 = 64,538,278.74 : x
  2. Step 2: Convert to fraction form
    88,109,820.09/121,437,640.26 = 64,538,278.74/x
  3. Step 3: Cross multiply
    88,109,820.09x = 121,437,640.26 × 64,538,278.74
  4. Step 4: Simplify right side
    88,109,820.09x = 7,837,376,276,627,727
  5. Step 5: Solve for x
    x = 7,837,376,276,627,727/88,109,820.09
  6. Step 6: Final answer
    x = 88,950,088.29

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1.5x scale

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.