Home / 98,939,857.20-148,367,795.40-47,837,540.40

Finding the Fourth Proportional to 98,939,857.20, 148,367,795.40 and 47,837,540.40

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Solution

The fourth proportional to 98,939,857.20, 148,367,795.40 and 47,837,540.40 is: 71,736,008.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,939,857.20 : 148,367,795.40 = 47,837,540.40 : x
  2. Step 2: Convert to fraction form
    98,939,857.20/148,367,795.40 = 47,837,540.40/x
  3. Step 3: Cross multiply
    98,939,857.20x = 148,367,795.40 × 47,837,540.40
  4. Step 4: Simplify right side
    98,939,857.20x = 7,097,550,406,506,434
  5. Step 5: Solve for x
    x = 7,097,550,406,506,434/98,939,857.20
  6. Step 6: Final answer
    x = 71,736,008.19

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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.