Home / 286,637,191.50-429,951,466.56-128,958,852.52

Finding the Fourth Proportional to 286,637,191.50, 429,951,466.56 and 128,958,852.52

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Solution

The fourth proportional to 286,637,191.50, 429,951,466.56 and 128,958,852.52 is: 193,436,334.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,637,191.50 : 429,951,466.56 = 128,958,852.52 : x
  2. Step 2: Convert to fraction form
    286,637,191.50/429,951,466.56 = 128,958,852.52/x
  3. Step 3: Cross multiply
    286,637,191.50x = 429,951,466.56 × 128,958,852.52
  4. Step 4: Simplify right side
    286,637,191.50x = 55,446,047,766,868,752
  5. Step 5: Solve for x
    x = 55,446,047,766,868,752/286,637,191.50
  6. Step 6: Final answer
    x = 193,436,334.89

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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.