Home / 70,130,987.61-96,780,894.26-39,191,156.89

Finding the Fourth Proportional to 70,130,987.61, 96,780,894.26 and 39,191,156.89

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Solution

The fourth proportional to 70,130,987.61, 96,780,894.26 and 39,191,156.89 is: 54,083,869.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,130,987.61 : 96,780,894.26 = 39,191,156.89 : x
  2. Step 2: Convert to fraction form
    70,130,987.61/96,780,894.26 = 39,191,156.89/x
  3. Step 3: Cross multiply
    70,130,987.61x = 96,780,894.26 × 39,191,156.89
  4. Step 4: Simplify right side
    70,130,987.61x = 3,792,955,211,004,644.50
  5. Step 5: Solve for x
    x = 3,792,955,211,004,644.50/70,130,987.61
  6. Step 6: Final answer
    x = 54,083,869.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.