Home / 12,931,330.98-19,404,558.63-7,178,908.62

Finding the Fourth Proportional to 12,931,330.98, 19,404,558.63 and 7,178,908.62

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Solution

The fourth proportional to 12,931,330.98, 19,404,558.63 and 7,178,908.62 is: 10,772,561.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931,330.98 : 19,404,558.63 = 7,178,908.62 : x
  2. Step 2: Convert to fraction form
    12,931,330.98/19,404,558.63 = 7,178,908.62/x
  3. Step 3: Cross multiply
    12,931,330.98x = 19,404,558.63 × 7,178,908.62
  4. Step 4: Simplify right side
    12,931,330.98x = 139,303,553,216,202.39
  5. Step 5: Solve for x
    x = 139,303,553,216,202.39/12,931,330.98
  6. Step 6: Final answer
    x = 10,772,561.11

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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.