Home / 71,001,544,521.79-97,985,211,435.92-39,319,157,865.80

Finding the Fourth Proportional to 71,001,544,521.79, 97,985,211,435.92 and 39,319,157,865.80

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Solution

The fourth proportional to 71,001,544,521.79, 97,985,211,435.92 and 39,319,157,865.80 is: 54,262,143,491.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,001,544,521.79 : 97,985,211,435.92 = 39,319,157,865.80 : x
  2. Step 2: Convert to fraction form
    71,001,544,521.79/97,985,211,435.92 = 39,319,157,865.80/x
  3. Step 3: Cross multiply
    71,001,544,521.79x = 97,985,211,435.92 × 39,319,157,865.80
  4. Step 4: Simplify right side
    71,001,544,521.79x = 3,852,695,996,962,454,896,640
  5. Step 5: Solve for x
    x = 3,852,695,996,962,454,896,640/71,001,544,521.79
  6. Step 6: Final answer
    x = 54,262,143,491.54

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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.