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Finding the Third Proportional to 407,409,042.50 and 646,176,033.50

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Solution

The third proportional to 407,409,042.50 and 646,176,033.50 is: 1,024,875,303.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,409,042.50 : 646,176,033.50 = 646,176,033.50 : x
  2. Step 2: Convert to fraction form
    407,409,042.50/646,176,033.50 = 646,176,033.50/x
  3. Step 3: Cross multiply
    407,409,042.50x = 646,176,033.50 × 646,176,033.50
  4. Step 4: Simplify right side
    407,409,042.50x = 417,543,466,269,793,152
  5. Step 5: Solve for x
    x = 417,543,466,269,793,152/407,409,042.50
  6. Step 6: Final answer
    x = 1,024,875,303.96

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.