Home / 119,795,145.90-179,767,109.64-76,695,280.80

Finding the Fourth Proportional to 119,795,145.90, 179,767,109.64 and 76,695,280.80

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Solution

The fourth proportional to 119,795,145.90, 179,767,109.64 and 76,695,280.80 is: 115,090,547.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,795,145.90 : 179,767,109.64 = 76,695,280.80 : x
  2. Step 2: Convert to fraction form
    119,795,145.90/179,767,109.64 = 76,695,280.80/x
  3. Step 3: Cross multiply
    119,795,145.90x = 179,767,109.64 × 76,695,280.80
  4. Step 4: Simplify right side
    119,795,145.90x = 13,787,288,952,444,186
  5. Step 5: Solve for x
    x = 13,787,288,952,444,186/119,795,145.90
  6. Step 6: Final answer
    x = 115,090,547.69

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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.