Home / 124,398,418.60-186,681,608.70-81,162,303.40

Finding the Fourth Proportional to 124,398,418.60, 186,681,608.70 and 81,162,303.40

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Solution

The fourth proportional to 124,398,418.60, 186,681,608.70 and 81,162,303.40 is: 121,798,247.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,398,418.60 : 186,681,608.70 = 81,162,303.40 : x
  2. Step 2: Convert to fraction form
    124,398,418.60/186,681,608.70 = 81,162,303.40/x
  3. Step 3: Cross multiply
    124,398,418.60x = 186,681,608.70 × 81,162,303.40
  4. Step 4: Simplify right side
    124,398,418.60x = 15,151,509,364,509,480
  5. Step 5: Solve for x
    x = 15,151,509,364,509,480/124,398,418.60
  6. Step 6: Final answer
    x = 121,798,247.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.