Home / 130,880,826.62-180,615,496.68-72,144,472.62

Finding the Fourth Proportional to 130,880,826.62, 180,615,496.68 and 72,144,472.62

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Solution

The fourth proportional to 130,880,826.62, 180,615,496.68 and 72,144,472.62 is: 99,559,347.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,880,826.62 : 180,615,496.68 = 72,144,472.62 : x
  2. Step 2: Convert to fraction form
    130,880,826.62/180,615,496.68 = 72,144,472.62/x
  3. Step 3: Cross multiply
    130,880,826.62x = 180,615,496.68 × 72,144,472.62
  4. Step 4: Simplify right side
    130,880,826.62x = 13,030,409,755,401,144
  5. Step 5: Solve for x
    x = 13,030,409,755,401,144/130,880,826.62
  6. Step 6: Final answer
    x = 99,559,347.93

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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.