Home / 19,159,737.40-28,739,606.10-12,357,292.60

Finding the Fourth Proportional to 19,159,737.40, 28,739,606.10 and 12,357,292.60

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Solution

The fourth proportional to 19,159,737.40, 28,739,606.10 and 12,357,292.60 is: 18,535,938.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,159,737.40 : 28,739,606.10 = 12,357,292.60 : x
  2. Step 2: Convert to fraction form
    19,159,737.40/28,739,606.10 = 12,357,292.60/x
  3. Step 3: Cross multiply
    19,159,737.40x = 28,739,606.10 × 12,357,292.60
  4. Step 4: Simplify right side
    19,159,737.40x = 355,143,721,786,444.88
  5. Step 5: Solve for x
    x = 355,143,721,786,444.88/19,159,737.40
  6. Step 6: Final answer
    x = 18,535,938.90

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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.