Home / 76,658,749.40-114,988,124.10-49,448,970.20

Finding the Fourth Proportional to 76,658,749.40, 114,988,124.10 and 49,448,970.20

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Solution

The fourth proportional to 76,658,749.40, 114,988,124.10 and 49,448,970.20 is: 74,173,455.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,658,749.40 : 114,988,124.10 = 49,448,970.20 : x
  2. Step 2: Convert to fraction form
    76,658,749.40/114,988,124.10 = 49,448,970.20/x
  3. Step 3: Cross multiply
    76,658,749.40x = 114,988,124.10 × 49,448,970.20
  4. Step 4: Simplify right side
    76,658,749.40x = 5,686,044,321,974,802
  5. Step 5: Solve for x
    x = 5,686,044,321,974,802/76,658,749.40
  6. Step 6: Final answer
    x = 74,173,455.30

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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.