Home / 645,038,897.96-890,229,250.10-366,622,272.48

Finding the Fourth Proportional to 645,038,897.96, 890,229,250.10 and 366,622,272.48

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Solution

The fourth proportional to 645,038,897.96, 890,229,250.10 and 366,622,272.48 is: 505,981,688.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,038,897.96 : 890,229,250.10 = 366,622,272.48 : x
  2. Step 2: Convert to fraction form
    645,038,897.96/890,229,250.10 = 366,622,272.48/x
  3. Step 3: Cross multiply
    645,038,897.96x = 890,229,250.10 × 366,622,272.48
  4. Step 4: Simplify right side
    645,038,897.96x = 326,377,870,699,828,288
  5. Step 5: Solve for x
    x = 326,377,870,699,828,288/645,038,897.96
  6. Step 6: Final answer
    x = 505,981,688.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.