Home / 305,241,549.12-457,865,157.60-86,891,883.30

Finding the Fourth Proportional to 305,241,549.12, 457,865,157.60 and 86,891,883.30

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Solution

The fourth proportional to 305,241,549.12, 457,865,157.60 and 86,891,883.30 is: 130,338,631.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,241,549.12 : 457,865,157.60 = 86,891,883.30 : x
  2. Step 2: Convert to fraction form
    305,241,549.12/457,865,157.60 = 86,891,883.30/x
  3. Step 3: Cross multiply
    305,241,549.12x = 457,865,157.60 × 86,891,883.30
  4. Step 4: Simplify right side
    305,241,549.12x = 39,784,765,841,315,312
  5. Step 5: Solve for x
    x = 39,784,765,841,315,312/305,241,549.12
  6. Step 6: Final answer
    x = 130,338,631.67

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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.