Home / 78,389,943.84-117,577,317.41-23,803,009.20

Finding the Fourth Proportional to 78,389,943.84, 117,577,317.41 and 23,803,009.20

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Solution

The fourth proportional to 78,389,943.84, 117,577,317.41 and 23,803,009.20 is: 35,702,206.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,389,943.84 : 117,577,317.41 = 23,803,009.20 : x
  2. Step 2: Convert to fraction form
    78,389,943.84/117,577,317.41 = 23,803,009.20/x
  3. Step 3: Cross multiply
    78,389,943.84x = 117,577,317.41 × 23,803,009.20
  4. Step 4: Simplify right side
    78,389,943.84x = 2,798,693,967,433,663.50
  5. Step 5: Solve for x
    x = 2,798,693,967,433,663.50/78,389,943.84
  6. Step 6: Final answer
    x = 35,702,206.57

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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.