Home / 107,143,813.20-147,889,929.48-69,979,774.96

Finding the Fourth Proportional to 107,143,813.20, 147,889,929.48 and 69,979,774.96

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Solution

The fourth proportional to 107,143,813.20, 147,889,929.48 and 69,979,774.96 is: 96,592,641.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,143,813.20 : 147,889,929.48 = 69,979,774.96 : x
  2. Step 2: Convert to fraction form
    107,143,813.20/147,889,929.48 = 69,979,774.96/x
  3. Step 3: Cross multiply
    107,143,813.20x = 147,889,929.48 × 69,979,774.96
  4. Step 4: Simplify right side
    107,143,813.20x = 10,349,303,983,860,668
  5. Step 5: Solve for x
    x = 10,349,303,983,860,668/107,143,813.20
  6. Step 6: Final answer
    x = 96,592,641.93

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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.