Home / 18,701,861,158.65-25,808,249,434.03-10,128,218,316.20

Finding the Fourth Proportional to 18,701,861,158.65, 25,808,249,434.03 and 10,128,218,316.20

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Solution

The fourth proportional to 18,701,861,158.65, 25,808,249,434.03 and 10,128,218,316.20 is: 13,976,768,537.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701,861,158.65 : 25,808,249,434.03 = 10,128,218,316.20 : x
  2. Step 2: Convert to fraction form
    18,701,861,158.65/25,808,249,434.03 = 10,128,218,316.20/x
  3. Step 3: Cross multiply
    18,701,861,158.65x = 25,808,249,434.03 × 10,128,218,316.20
  4. Step 4: Simplify right side
    18,701,861,158.65x = 261,391,584,626,795,380,736
  5. Step 5: Solve for x
    x = 261,391,584,626,795,380,736/18,701,861,158.65
  6. Step 6: Final answer
    x = 13,976,768,537.07

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Double scale
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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.