Home / 13,928,081,774.60-20,864,912,882.70-8,390,891,707.40

Finding the Fourth Proportional to 13,928,081,774.60, 20,864,912,882.70 and 8,390,891,707.40

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Solution

The fourth proportional to 13,928,081,774.60, 20,864,912,882.70 and 8,390,891,707.40 is: 12,569,945,188.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928,081,774.60 : 20,864,912,882.70 = 8,390,891,707.40 : x
  2. Step 2: Convert to fraction form
    13,928,081,774.60/20,864,912,882.70 = 8,390,891,707.40/x
  3. Step 3: Cross multiply
    13,928,081,774.60x = 20,864,912,882.70 × 8,390,891,707.40
  4. Step 4: Simplify right side
    13,928,081,774.60x = 175,075,224,483,070,869,504
  5. Step 5: Solve for x
    x = 175,075,224,483,070,869,504/13,928,081,774.60
  6. Step 6: Final answer
    x = 12,569,945,188.17

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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.