Home / 129,326,501.70-193,989,752.55-83,409,999.30

Finding the Fourth Proportional to 129,326,501.70, 193,989,752.55 and 83,409,999.30

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Solution

The fourth proportional to 129,326,501.70, 193,989,752.55 and 83,409,999.30 is: 125,114,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,326,501.70 : 193,989,752.55 = 83,409,999.30 : x
  2. Step 2: Convert to fraction form
    129,326,501.70/193,989,752.55 = 83,409,999.30/x
  3. Step 3: Cross multiply
    129,326,501.70x = 193,989,752.55 × 83,409,999.30
  4. Step 4: Simplify right side
    129,326,501.70x = 16,180,685,124,402,674
  5. Step 5: Solve for x
    x = 16,180,685,124,402,674/129,326,501.70
  6. Step 6: Final answer
    x = 125,114,998.95

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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.