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Finding the Fourth Proportional to 640,285,798.88, 883,604,433.84 and 375,973,636.16

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Solution

The fourth proportional to 640,285,798.88, 883,604,433.84 and 375,973,636.16 is: 518,849,508.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,285,798.88 : 883,604,433.84 = 375,973,636.16 : x
  2. Step 2: Convert to fraction form
    640,285,798.88/883,604,433.84 = 375,973,636.16/x
  3. Step 3: Cross multiply
    640,285,798.88x = 883,604,433.84 × 375,973,636.16
  4. Step 4: Simplify right side
    640,285,798.88x = 332,211,971,917,923,008
  5. Step 5: Solve for x
    x = 332,211,971,917,923,008/640,285,798.88
  6. Step 6: Final answer
    x = 518,849,508.30

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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.