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Finding the Fourth Proportional to 82,967,029.10, 124,562,518.05 and 65,946,920.30

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Solution

The fourth proportional to 82,967,029.10, 124,562,518.05 and 65,946,920.30 is: 99,009,384.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,967,029.10 : 124,562,518.05 = 65,946,920.30 : x
  2. Step 2: Convert to fraction form
    82,967,029.10/124,562,518.05 = 65,946,920.30/x
  3. Step 3: Cross multiply
    82,967,029.10x = 124,562,518.05 × 65,946,920.30
  4. Step 4: Simplify right side
    82,967,029.10x = 8,214,514,450,210,661
  5. Step 5: Solve for x
    x = 8,214,514,450,210,661/82,967,029.10
  6. Step 6: Final answer
    x = 99,009,384.08

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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.