Home / 18,701,861,159.65-25,808,249,435.41-10,128,218,317.20

Finding the Fourth Proportional to 18,701,861,159.65, 25,808,249,435.41 and 10,128,218,317.20

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Solution

The fourth proportional to 18,701,861,159.65, 25,808,249,435.41 and 10,128,218,317.20 is: 13,976,768,538.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701,861,159.65 : 25,808,249,435.41 = 10,128,218,317.20 : x
  2. Step 2: Convert to fraction form
    18,701,861,159.65/25,808,249,435.41 = 10,128,218,317.20/x
  3. Step 3: Cross multiply
    18,701,861,159.65x = 25,808,249,435.41 × 10,128,218,317.20
  4. Step 4: Simplify right side
    18,701,861,159.65x = 261,391,584,666,586,152,960
  5. Step 5: Solve for x
    x = 261,391,584,666,586,152,960/18,701,861,159.65
  6. Step 6: Final answer
    x = 13,976,768,538.45

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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.