Home / 219,092,864.68-302,357,601.06-121,307,729.32

Finding the Fourth Proportional to 219,092,864.68, 302,357,601.06 and 121,307,729.32

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Solution

The fourth proportional to 219,092,864.68, 302,357,601.06 and 121,307,729.32 is: 167,409,897.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,092,864.68 : 302,357,601.06 = 121,307,729.32 : x
  2. Step 2: Convert to fraction form
    219,092,864.68/302,357,601.06 = 121,307,729.32/x
  3. Step 3: Cross multiply
    219,092,864.68x = 302,357,601.06 × 121,307,729.32
  4. Step 4: Simplify right side
    219,092,864.68x = 36,678,314,027,231,024
  5. Step 5: Solve for x
    x = 36,678,314,027,231,024/219,092,864.68
  6. Step 6: Final answer
    x = 167,409,897.54

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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.