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Finding the Fourth Proportional to 289,602,003.80, 434,403,005.70 and 289,602,003.80

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Solution

The fourth proportional to 289,602,003.80, 434,403,005.70 and 289,602,003.80 is: 434,403,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,602,003.80 : 434,403,005.70 = 289,602,003.80 : x
  2. Step 2: Convert to fraction form
    289,602,003.80/434,403,005.70 = 289,602,003.80/x
  3. Step 3: Cross multiply
    289,602,003.80x = 434,403,005.70 × 289,602,003.80
  4. Step 4: Simplify right side
    289,602,003.80x = 125,803,980,907,462,816
  5. Step 5: Solve for x
    x = 125,803,980,907,462,816/289,602,003.80
  6. Step 6: Final answer
    x = 434,403,005.70

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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.