Home / 19,125,678.59-28,688,829.29-5,478,771.94

Finding the Fourth Proportional to 19,125,678.59, 28,688,829.29 and 5,478,771.94

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Solution

The fourth proportional to 19,125,678.59, 28,688,829.29 and 5,478,771.94 is: 8,218,247.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,125,678.59 : 28,688,829.29 = 5,478,771.94 : x
  2. Step 2: Convert to fraction form
    19,125,678.59/28,688,829.29 = 5,478,771.94/x
  3. Step 3: Cross multiply
    19,125,678.59x = 28,688,829.29 × 5,478,771.94
  4. Step 4: Simplify right side
    19,125,678.59x = 157,179,552,734,664.09
  5. Step 5: Solve for x
    x = 157,179,552,734,664.09/19,125,678.59
  6. Step 6: Final answer
    x = 8,218,247.11

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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.