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Finding the Third Proportional to 272,925,756 and 390,287,052

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Solution

The third proportional to 272,925,756 and 390,287,052 is: 558,115,090.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,925,756 : 390,287,052 = 390,287,052 : x
  2. Step 2: Convert to fraction form
    272,925,756/390,287,052 = 390,287,052/x
  3. Step 3: Cross multiply
    272,925,756x = 390,287,052 × 390,287,052
  4. Step 4: Simplify right side
    272,925,756x = 152,323,982,958,850,688
  5. Step 5: Solve for x
    x = 152,323,982,958,850,688/272,925,756
  6. Step 6: Final answer
    x = 558,115,090.31

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.