Home / 289,979,530.20-434,834,440.08-105,618,662.16

Finding the Fourth Proportional to 289,979,530.20, 434,834,440.08 and 105,618,662.16

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Solution

The fourth proportional to 289,979,530.20, 434,834,440.08 and 105,618,662.16 is: 158,378,875.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,979,530.20 : 434,834,440.08 = 105,618,662.16 : x
  2. Step 2: Convert to fraction form
    289,979,530.20/434,834,440.08 = 105,618,662.16/x
  3. Step 3: Cross multiply
    289,979,530.20x = 434,834,440.08 × 105,618,662.16
  4. Step 4: Simplify right side
    289,979,530.20x = 45,926,631,822,342,280
  5. Step 5: Solve for x
    x = 45,926,631,822,342,280/289,979,530.20
  6. Step 6: Final answer
    x = 158,378,875.19

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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.