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Finding the Third Proportional to 309,139,537 and 666,705,267.50

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Solution

The third proportional to 309,139,537 and 666,705,267.50 is: 1,437,848,804.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,139,537 : 666,705,267.50 = 666,705,267.50 : x
  2. Step 2: Convert to fraction form
    309,139,537/666,705,267.50 = 666,705,267.50/x
  3. Step 3: Cross multiply
    309,139,537x = 666,705,267.50 × 666,705,267.50
  4. Step 4: Simplify right side
    309,139,537x = 444,495,913,712,246,528
  5. Step 5: Solve for x
    x = 444,495,913,712,246,528/309,139,537
  6. Step 6: Final answer
    x = 1,437,848,804.54

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.