Home / 139,709,934,808.60-209,564,902,212.90-76,800,925,298.20

Finding the Fourth Proportional to 139,709,934,808.60, 209,564,902,212.90 and 76,800,925,298.20

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Solution

The fourth proportional to 139,709,934,808.60, 209,564,902,212.90 and 76,800,925,298.20 is: 115,201,387,947.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,709,934,808.60 : 209,564,902,212.90 = 76,800,925,298.20 : x
  2. Step 2: Convert to fraction form
    139,709,934,808.60/209,564,902,212.90 = 76,800,925,298.20/x
  3. Step 3: Cross multiply
    139,709,934,808.60x = 209,564,902,212.90 × 76,800,925,298.20
  4. Step 4: Simplify right side
    139,709,934,808.60x = 16,094,778,399,977,520,496,640
  5. Step 5: Solve for x
    x = 16,094,778,399,977,520,496,640/139,709,934,808.60
  6. Step 6: Final answer
    x = 115,201,387,947.30

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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.