Home / 7,710,400.80-11,565,601.20-5,918,810.40

Finding the Fourth Proportional to 7,710,400.80, 11,565,601.20 and 5,918,810.40

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Solution

The fourth proportional to 7,710,400.80, 11,565,601.20 and 5,918,810.40 is: 8,878,215.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,710,400.80 : 11,565,601.20 = 5,918,810.40 : x
  2. Step 2: Convert to fraction form
    7,710,400.80/11,565,601.20 = 5,918,810.40/x
  3. Step 3: Cross multiply
    7,710,400.80x = 11,565,601.20 × 5,918,810.40
  4. Step 4: Simplify right side
    7,710,400.80x = 68,454,600,664,812.48
  5. Step 5: Solve for x
    x = 68,454,600,664,812.48/7,710,400.80
  6. Step 6: Final answer
    x = 8,878,215.60

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1.5x scale

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.