Home / 78,295,215.36-117,398,554.81-25,758,670.08

Finding the Fourth Proportional to 78,295,215.36, 117,398,554.81 and 25,758,670.08

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Solution

The fourth proportional to 78,295,215.36, 117,398,554.81 and 25,758,670.08 is: 38,623,441.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,295,215.36 : 117,398,554.81 = 25,758,670.08 : x
  2. Step 2: Convert to fraction form
    78,295,215.36/117,398,554.81 = 25,758,670.08/x
  3. Step 3: Cross multiply
    78,295,215.36x = 117,398,554.81 × 25,758,670.08
  4. Step 4: Simplify right side
    78,295,215.36x = 3,024,030,640,754,969.50
  5. Step 5: Solve for x
    x = 3,024,030,640,754,969.50/78,295,215.36
  6. Step 6: Final answer
    x = 38,623,441.13

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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.