Home / 115,638,482-159,616,833.72-74,385,378.02

Finding the Fourth Proportional to 115,638,482, 159,616,833.72 and 74,385,378.02

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Solution

The fourth proportional to 115,638,482, 159,616,833.72 and 74,385,378.02 is: 102,674,804.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,638,482 : 159,616,833.72 = 74,385,378.02 : x
  2. Step 2: Convert to fraction form
    115,638,482/159,616,833.72 = 74,385,378.02/x
  3. Step 3: Cross multiply
    115,638,482x = 159,616,833.72 × 74,385,378.02
  4. Step 4: Simplify right side
    115,638,482x = 11,873,158,514,617,682
  5. Step 5: Solve for x
    x = 11,873,158,514,617,682/115,638,482
  6. Step 6: Final answer
    x = 102,674,804.35

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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.