Home / 20,219,448,378.30-30,329,172,567.45-9,199,487,802.30

Finding the Fourth Proportional to 20,219,448,378.30, 30,329,172,567.45 and 9,199,487,802.30

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Solution

The fourth proportional to 20,219,448,378.30, 30,329,172,567.45 and 9,199,487,802.30 is: 13,799,231,703.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219,448,378.30 : 30,329,172,567.45 = 9,199,487,802.30 : x
  2. Step 2: Convert to fraction form
    20,219,448,378.30/30,329,172,567.45 = 9,199,487,802.30/x
  3. Step 3: Cross multiply
    20,219,448,378.30x = 30,329,172,567.45 × 9,199,487,802.30
  4. Step 4: Simplify right side
    20,219,448,378.30x = 279,012,853,088,108,019,712
  5. Step 5: Solve for x
    x = 279,012,853,088,108,019,712/20,219,448,378.30
  6. Step 6: Final answer
    x = 13,799,231,703.45

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.