Home / 219,163,477.20-328,116,070.20-212,872,021.20

Finding the Fourth Proportional to 219,163,477.20, 328,116,070.20 and 212,872,021.20

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Solution

The fourth proportional to 219,163,477.20, 328,116,070.20 and 212,872,021.20 is: 318,696,946.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,163,477.20 : 328,116,070.20 = 212,872,021.20 : x
  2. Step 2: Convert to fraction form
    219,163,477.20/328,116,070.20 = 212,872,021.20/x
  3. Step 3: Cross multiply
    219,163,477.20x = 328,116,070.20 × 212,872,021.20
  4. Step 4: Simplify right side
    219,163,477.20x = 69,846,731,051,675,080
  5. Step 5: Solve for x
    x = 69,846,731,051,675,080/219,163,477.20
  6. Step 6: Final answer
    x = 318,696,946.88

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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.