Home / 346,884,019.20-520,326,028.80-142,344,115.20

Finding the Fourth Proportional to 346,884,019.20, 520,326,028.80 and 142,344,115.20

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Solution

The fourth proportional to 346,884,019.20, 520,326,028.80 and 142,344,115.20 is: 213,516,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,884,019.20 : 520,326,028.80 = 142,344,115.20 : x
  2. Step 2: Convert to fraction form
    346,884,019.20/520,326,028.80 = 142,344,115.20/x
  3. Step 3: Cross multiply
    346,884,019.20x = 520,326,028.80 × 142,344,115.20
  4. Step 4: Simplify right side
    346,884,019.20x = 74,065,348,185,065,712
  5. Step 5: Solve for x
    x = 74,065,348,185,065,712/346,884,019.20
  6. Step 6: Final answer
    x = 213,516,172.80

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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.