Home / 76,423,948.68-105,464,005.40-43,383,909.36

Finding the Fourth Proportional to 76,423,948.68, 105,464,005.40 and 43,383,909.36

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Solution

The fourth proportional to 76,423,948.68, 105,464,005.40 and 43,383,909.36 is: 59,869,202.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,423,948.68 : 105,464,005.40 = 43,383,909.36 : x
  2. Step 2: Convert to fraction form
    76,423,948.68/105,464,005.40 = 43,383,909.36/x
  3. Step 3: Cross multiply
    76,423,948.68x = 105,464,005.40 × 43,383,909.36
  4. Step 4: Simplify right side
    76,423,948.68x = 4,575,440,851,016,151
  5. Step 5: Solve for x
    x = 4,575,440,851,016,151/76,423,948.68
  6. Step 6: Final answer
    x = 59,869,202.39

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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.