Home / 309,707,256.63-427,407,289.59-168,571,654.19

Finding the Fourth Proportional to 309,707,256.63, 427,407,289.59 and 168,571,654.19

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Solution

The fourth proportional to 309,707,256.63, 427,407,289.59 and 168,571,654.19 is: 232,635,019.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,707,256.63 : 427,407,289.59 = 168,571,654.19 : x
  2. Step 2: Convert to fraction form
    309,707,256.63/427,407,289.59 = 168,571,654.19/x
  3. Step 3: Cross multiply
    309,707,256.63x = 427,407,289.59 × 168,571,654.19
  4. Step 4: Simplify right side
    309,707,256.63x = 72,048,753,819,050,664
  5. Step 5: Solve for x
    x = 72,048,753,819,050,664/309,707,256.63
  6. Step 6: Final answer
    x = 232,635,019.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.