Home / 289,587,029.40-434,380,544.10-153,538,133.40

Finding the Fourth Proportional to 289,587,029.40, 434,380,544.10 and 153,538,133.40

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Solution

The fourth proportional to 289,587,029.40, 434,380,544.10 and 153,538,133.40 is: 230,307,200.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,587,029.40 : 434,380,544.10 = 153,538,133.40 : x
  2. Step 2: Convert to fraction form
    289,587,029.40/434,380,544.10 = 153,538,133.40/x
  3. Step 3: Cross multiply
    289,587,029.40x = 434,380,544.10 × 153,538,133.40
  4. Step 4: Simplify right side
    289,587,029.40x = 66,693,977,926,390,392
  5. Step 5: Solve for x
    x = 66,693,977,926,390,392/289,587,029.40
  6. Step 6: Final answer
    x = 230,307,200.10

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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.