Home / 272,665,586.86-409,038,742.76-100,128,948.31

Finding the Fourth Proportional to 272,665,586.86, 409,038,742.76 and 100,128,948.31

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Solution

The fourth proportional to 272,665,586.86, 409,038,742.76 and 100,128,948.31 is: 150,208,244.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,665,586.86 : 409,038,742.76 = 100,128,948.31 : x
  2. Step 2: Convert to fraction form
    272,665,586.86/409,038,742.76 = 100,128,948.31/x
  3. Step 3: Cross multiply
    272,665,586.86x = 409,038,742.76 × 100,128,948.31
  4. Step 4: Simplify right side
    272,665,586.86x = 40,956,619,130,102,784
  5. Step 5: Solve for x
    x = 40,956,619,130,102,784/272,665,586.86
  6. Step 6: Final answer
    x = 150,208,244.47

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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.