Home / 80,779,396,534.80-121,169,094,802.20-38,937,983,722.80

Finding the Fourth Proportional to 80,779,396,534.80, 121,169,094,802.20 and 38,937,983,722.80

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Solution

The fourth proportional to 80,779,396,534.80, 121,169,094,802.20 and 38,937,983,722.80 is: 58,406,975,584.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,779,396,534.80 : 121,169,094,802.20 = 38,937,983,722.80 : x
  2. Step 2: Convert to fraction form
    80,779,396,534.80/121,169,094,802.20 = 38,937,983,722.80/x
  3. Step 3: Cross multiply
    80,779,396,534.80x = 121,169,094,802.20 × 38,937,983,722.80
  4. Step 4: Simplify right side
    80,779,396,534.80x = 4,718,080,241,114,473,824,256
  5. Step 5: Solve for x
    x = 4,718,080,241,114,473,824,256/80,779,396,534.80
  6. Step 6: Final answer
    x = 58,406,975,584.20

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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.