Home / 74,138,890.60-111,208,335.90-61,289,828.20

Finding the Fourth Proportional to 74,138,890.60, 111,208,335.90 and 61,289,828.20

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Solution

The fourth proportional to 74,138,890.60, 111,208,335.90 and 61,289,828.20 is: 91,934,742.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,138,890.60 : 111,208,335.90 = 61,289,828.20 : x
  2. Step 2: Convert to fraction form
    74,138,890.60/111,208,335.90 = 61,289,828.20/x
  3. Step 3: Cross multiply
    74,138,890.60x = 111,208,335.90 × 61,289,828.20
  4. Step 4: Simplify right side
    74,138,890.60x = 6,815,939,801,718,893
  5. Step 5: Solve for x
    x = 6,815,939,801,718,893/74,138,890.60
  6. Step 6: Final answer
    x = 91,934,742.30

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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.