Home / 61,271,280.80-91,812,442.80-53,146,138.40

Finding the Fourth Proportional to 61,271,280.80, 91,812,442.80 and 53,146,138.40

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Solution

The fourth proportional to 61,271,280.80, 91,812,442.80 and 53,146,138.40 is: 79,637,257.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,271,280.80 : 91,812,442.80 = 53,146,138.40 : x
  2. Step 2: Convert to fraction form
    61,271,280.80/91,812,442.80 = 53,146,138.40/x
  3. Step 3: Cross multiply
    61,271,280.80x = 91,812,442.80 × 53,146,138.40
  4. Step 4: Simplify right side
    61,271,280.80x = 4,879,476,791,890,883
  5. Step 5: Solve for x
    x = 4,879,476,791,890,883/61,271,280.80
  6. Step 6: Final answer
    x = 79,637,257.92

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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.