Home / 30,487,307,416.05-42,073,619,678.19-18,281,999,677.23

Finding the Fourth Proportional to 30,487,307,416.05, 42,073,619,678.19 and 18,281,999,677.23

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Solution

The fourth proportional to 30,487,307,416.05, 42,073,619,678.19 and 18,281,999,677.23 is: 25,229,840,434.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,487,307,416.05 : 42,073,619,678.19 = 18,281,999,677.23 : x
  2. Step 2: Convert to fraction form
    30,487,307,416.05/42,073,619,678.19 = 18,281,999,677.23/x
  3. Step 3: Cross multiply
    30,487,307,416.05x = 42,073,619,678.19 × 18,281,999,677.23
  4. Step 4: Simplify right side
    30,487,307,416.05x = 769,189,901,376,567,377,920
  5. Step 5: Solve for x
    x = 769,189,901,376,567,377,920/30,487,307,416.05
  6. Step 6: Final answer
    x = 25,229,840,434.24

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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.