Home / 30,891,881.60-46,359,940.80-12,953,859.20

Finding the Fourth Proportional to 30,891,881.60, 46,359,940.80 and 12,953,859.20

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Solution

The fourth proportional to 30,891,881.60, 46,359,940.80 and 12,953,859.20 is: 19,440,063.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,891,881.60 : 46,359,940.80 = 12,953,859.20 : x
  2. Step 2: Convert to fraction form
    30,891,881.60/46,359,940.80 = 12,953,859.20/x
  3. Step 3: Cross multiply
    30,891,881.60x = 46,359,940.80 × 12,953,859.20
  4. Step 4: Simplify right side
    30,891,881.60x = 600,540,145,643,535.25
  5. Step 5: Solve for x
    x = 600,540,145,643,535.25/30,891,881.60
  6. Step 6: Final answer
    x = 19,440,063.68

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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.