Home / 70,504,759.76-105,509,718.15-56,637,643.89

Finding the Fourth Proportional to 70,504,759.76, 105,509,718.15 and 56,637,643.89

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Solution

The fourth proportional to 70,504,759.76, 105,509,718.15 and 56,637,643.89 is: 84,757,708.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,504,759.76 : 105,509,718.15 = 56,637,643.89 : x
  2. Step 2: Convert to fraction form
    70,504,759.76/105,509,718.15 = 56,637,643.89/x
  3. Step 3: Cross multiply
    70,504,759.76x = 105,509,718.15 × 56,637,643.89
  4. Step 4: Simplify right side
    70,504,759.76x = 5,975,821,843,513,970
  5. Step 5: Solve for x
    x = 5,975,821,843,513,970/70,504,759.76
  6. Step 6: Final answer
    x = 84,757,708.05

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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.