Home / 384,367,066.09-530,423,910-208,151,028.95

Finding the Fourth Proportional to 384,367,066.09, 530,423,910 and 208,151,028.95

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Solution

The fourth proportional to 384,367,066.09, 530,423,910 and 208,151,028.95 is: 287,246,989.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,367,066.09 : 530,423,910 = 208,151,028.95 : x
  2. Step 2: Convert to fraction form
    384,367,066.09/530,423,910 = 208,151,028.95/x
  3. Step 3: Cross multiply
    384,367,066.09x = 530,423,910 × 208,151,028.95
  4. Step 4: Simplify right side
    384,367,066.09x = 110,408,282,643,530,064
  5. Step 5: Solve for x
    x = 110,408,282,643,530,064/384,367,066.09
  6. Step 6: Final answer
    x = 287,246,989.62

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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.