Home / 30,191,332.80-45,251,569.80-12,919,500.30

Finding the Fourth Proportional to 30,191,332.80, 45,251,569.80 and 12,919,500.30

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Solution

The fourth proportional to 30,191,332.80, 45,251,569.80 and 12,919,500.30 is: 19,364,089.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,191,332.80 : 45,251,569.80 = 12,919,500.30 : x
  2. Step 2: Convert to fraction form
    30,191,332.80/45,251,569.80 = 12,919,500.30/x
  3. Step 3: Cross multiply
    30,191,332.80x = 45,251,569.80 × 12,919,500.30
  4. Step 4: Simplify right side
    30,191,332.80x = 584,627,669,606,570.88
  5. Step 5: Solve for x
    x = 584,627,669,606,570.88/30,191,332.80
  6. Step 6: Final answer
    x = 19,364,089.47

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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.