Home / 139,709,934,813.60-209,564,902,220.40-76,800,925,303.20

Finding the Fourth Proportional to 139,709,934,813.60, 209,564,902,220.40 and 76,800,925,303.20

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Solution

The fourth proportional to 139,709,934,813.60, 209,564,902,220.40 and 76,800,925,303.20 is: 115,201,387,954.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,709,934,813.60 : 209,564,902,220.40 = 76,800,925,303.20 : x
  2. Step 2: Convert to fraction form
    139,709,934,813.60/209,564,902,220.40 = 76,800,925,303.20/x
  3. Step 3: Cross multiply
    139,709,934,813.60x = 209,564,902,220.40 × 76,800,925,303.20
  4. Step 4: Simplify right side
    139,709,934,813.60x = 16,094,778,401,601,351,581,696
  5. Step 5: Solve for x
    x = 16,094,778,401,601,351,581,696/139,709,934,813.60
  6. Step 6: Final answer
    x = 115,201,387,954.80

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1.5x scale

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.