Home / 86,939,620.20-130,409,430.30-65,256,827.40

Finding the Fourth Proportional to 86,939,620.20, 130,409,430.30 and 65,256,827.40

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Solution

The fourth proportional to 86,939,620.20, 130,409,430.30 and 65,256,827.40 is: 97,885,241.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,939,620.20 : 130,409,430.30 = 65,256,827.40 : x
  2. Step 2: Convert to fraction form
    86,939,620.20/130,409,430.30 = 65,256,827.40/x
  3. Step 3: Cross multiply
    86,939,620.20x = 130,409,430.30 × 65,256,827.40
  4. Step 4: Simplify right side
    86,939,620.20x = 8,510,105,684,419,430
  5. Step 5: Solve for x
    x = 8,510,105,684,419,430/86,939,620.20
  6. Step 6: Final answer
    x = 97,885,241.10

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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.