Home / 75,621,407.85-104,360,751.20-42,130,857.16

Finding the Fourth Proportional to 75,621,407.85, 104,360,751.20 and 42,130,857.16

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Solution

The fourth proportional to 75,621,407.85, 104,360,751.20 and 42,130,857.16 is: 58,142,370.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,621,407.85 : 104,360,751.20 = 42,130,857.16 : x
  2. Step 2: Convert to fraction form
    75,621,407.85/104,360,751.20 = 42,130,857.16/x
  3. Step 3: Cross multiply
    75,621,407.85x = 104,360,751.20 × 42,130,857.16
  4. Step 4: Simplify right side
    75,621,407.85x = 4,396,807,901,917,498.50
  5. Step 5: Solve for x
    x = 4,396,807,901,917,498.50/75,621,407.85
  6. Step 6: Final answer
    x = 58,142,370.35

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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.