Home / 289,979,531.20-434,834,441.58-105,618,663.16

Finding the Fourth Proportional to 289,979,531.20, 434,834,441.58 and 105,618,663.16

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Solution

The fourth proportional to 289,979,531.20, 434,834,441.58 and 105,618,663.16 is: 158,378,876.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,979,531.20 : 434,834,441.58 = 105,618,663.16 : x
  2. Step 2: Convert to fraction form
    289,979,531.20/434,834,441.58 = 105,618,663.16/x
  3. Step 3: Cross multiply
    289,979,531.20x = 434,834,441.58 × 105,618,663.16
  4. Step 4: Simplify right side
    289,979,531.20x = 45,926,632,415,604,712
  5. Step 5: Solve for x
    x = 45,926,632,415,604,712/289,979,531.20
  6. Step 6: Final answer
    x = 158,378,876.69

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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.