Home / 212,596,776.54-318,864,885-67,011,417.66

Finding the Fourth Proportional to 212,596,776.54, 318,864,885 and 67,011,417.66

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Solution

The fourth proportional to 212,596,776.54, 318,864,885 and 67,011,417.66 is: 100,507,582.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,596,776.54 : 318,864,885 = 67,011,417.66 : x
  2. Step 2: Convert to fraction form
    212,596,776.54/318,864,885 = 67,011,417.66/x
  3. Step 3: Cross multiply
    212,596,776.54x = 318,864,885 × 67,011,417.66
  4. Step 4: Simplify right side
    212,596,776.54x = 21,367,587,985,842,868
  5. Step 5: Solve for x
    x = 21,367,587,985,842,868/212,596,776.54
  6. Step 6: Final answer
    x = 100,507,582.16

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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.