Home / 77,280,004.90-115,920,007.35-58,006,411.30

Finding the Fourth Proportional to 77,280,004.90, 115,920,007.35 and 58,006,411.30

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Solution

The fourth proportional to 77,280,004.90, 115,920,007.35 and 58,006,411.30 is: 87,009,616.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,280,004.90 : 115,920,007.35 = 58,006,411.30 : x
  2. Step 2: Convert to fraction form
    77,280,004.90/115,920,007.35 = 58,006,411.30/x
  3. Step 3: Cross multiply
    77,280,004.90x = 115,920,007.35 × 58,006,411.30
  4. Step 4: Simplify right side
    77,280,004.90x = 6,724,103,624,243,122
  5. Step 5: Solve for x
    x = 6,724,103,624,243,122/77,280,004.90
  6. Step 6: Final answer
    x = 87,009,616.95

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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.