Home / 155,390,456.22-214,443,905.01-84,829,828.77

Finding the Fourth Proportional to 155,390,456.22, 214,443,905.01 and 84,829,828.77

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Solution

The fourth proportional to 155,390,456.22, 214,443,905.01 and 84,829,828.77 is: 117,067,934.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,390,456.22 : 214,443,905.01 = 84,829,828.77 : x
  2. Step 2: Convert to fraction form
    155,390,456.22/214,443,905.01 = 84,829,828.77/x
  3. Step 3: Cross multiply
    155,390,456.22x = 214,443,905.01 × 84,829,828.77
  4. Step 4: Simplify right side
    155,390,456.22x = 18,191,239,742,768,444
  5. Step 5: Solve for x
    x = 18,191,239,742,768,444/155,390,456.22
  6. Step 6: Final answer
    x = 117,067,934.45

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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.