Home / 74,272,643.10-111,408,964.65-47,009,719.80

Finding the Fourth Proportional to 74,272,643.10, 111,408,964.65 and 47,009,719.80

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Solution

The fourth proportional to 74,272,643.10, 111,408,964.65 and 47,009,719.80 is: 70,514,579.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,272,643.10 : 111,408,964.65 = 47,009,719.80 : x
  2. Step 2: Convert to fraction form
    74,272,643.10/111,408,964.65 = 47,009,719.80/x
  3. Step 3: Cross multiply
    74,272,643.10x = 111,408,964.65 × 47,009,719.80
  4. Step 4: Simplify right side
    74,272,643.10x = 5,237,304,211,404,605
  5. Step 5: Solve for x
    x = 5,237,304,211,404,605/74,272,643.10
  6. Step 6: Final answer
    x = 70,514,579.70

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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.