Home / 13,210,434,139.12-18,230,402,087.68-7,269,986,641.12

Finding the Fourth Proportional to 13,210,434,139.12, 18,230,402,087.68 and 7,269,986,641.12

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Solution

The fourth proportional to 13,210,434,139.12, 18,230,402,087.68 and 7,269,986,641.12 is: 10,032,583,202.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210,434,139.12 : 18,230,402,087.68 = 7,269,986,641.12 : x
  2. Step 2: Convert to fraction form
    13,210,434,139.12/18,230,402,087.68 = 7,269,986,641.12/x
  3. Step 3: Cross multiply
    13,210,434,139.12x = 18,230,402,087.68 × 7,269,986,641.12
  4. Step 4: Simplify right side
    13,210,434,139.12x = 132,534,779,639,679,762,432
  5. Step 5: Solve for x
    x = 132,534,779,639,679,762,432/13,210,434,139.12
  6. Step 6: Final answer
    x = 10,032,583,202.33

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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.