Home / 289,635,336.80-434,453,005.20-167,191,330.40

Finding the Fourth Proportional to 289,635,336.80, 434,453,005.20 and 167,191,330.40

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Solution

The fourth proportional to 289,635,336.80, 434,453,005.20 and 167,191,330.40 is: 250,786,995.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,635,336.80 : 434,453,005.20 = 167,191,330.40 : x
  2. Step 2: Convert to fraction form
    289,635,336.80/434,453,005.20 = 167,191,330.40/x
  3. Step 3: Cross multiply
    289,635,336.80x = 434,453,005.20 × 167,191,330.40
  4. Step 4: Simplify right side
    289,635,336.80x = 72,636,775,935,666,112
  5. Step 5: Solve for x
    x = 72,636,775,935,666,112/289,635,336.80
  6. Step 6: Final answer
    x = 250,786,995.60

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1.5x scale

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.