Home / 78,004,021.90-117,006,032.85-58,730,428.30

Finding the Fourth Proportional to 78,004,021.90, 117,006,032.85 and 58,730,428.30

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Solution

The fourth proportional to 78,004,021.90, 117,006,032.85 and 58,730,428.30 is: 88,095,642.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,004,021.90 : 117,006,032.85 = 58,730,428.30 : x
  2. Step 2: Convert to fraction form
    78,004,021.90/117,006,032.85 = 58,730,428.30/x
  3. Step 3: Cross multiply
    78,004,021.90x = 117,006,032.85 × 58,730,428.30
  4. Step 4: Simplify right side
    78,004,021.90x = 6,871,814,422,964,369
  5. Step 5: Solve for x
    x = 6,871,814,422,964,369/78,004,021.90
  6. Step 6: Final answer
    x = 88,095,642.45

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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.