Home / 15,625,180,667.40-21,564,597,870.90-9,281,573,563.20

Finding the Fourth Proportional to 15,625,180,667.40, 21,564,597,870.90 and 9,281,573,563.20

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Solution

The fourth proportional to 15,625,180,667.40, 21,564,597,870.90 and 9,281,573,563.20 is: 12,809,669,581.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,625,180,667.40 : 21,564,597,870.90 = 9,281,573,563.20 : x
  2. Step 2: Convert to fraction form
    15,625,180,667.40/21,564,597,870.90 = 9,281,573,563.20/x
  3. Step 3: Cross multiply
    15,625,180,667.40x = 21,564,597,870.90 × 9,281,573,563.20
  4. Step 4: Simplify right side
    15,625,180,667.40x = 200,153,401,499,584,462,848
  5. Step 5: Solve for x
    x = 200,153,401,499,584,462,848/15,625,180,667.40
  6. Step 6: Final answer
    x = 12,809,669,581.43

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1.5x scale

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.