Home / 347,272,349.76-520,512,269.40-139,878,012.24

Finding the Fourth Proportional to 347,272,349.76, 520,512,269.40 and 139,878,012.24

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Solution

The fourth proportional to 347,272,349.76, 520,512,269.40 and 139,878,012.24 is: 209,657,410.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,272,349.76 : 520,512,269.40 = 139,878,012.24 : x
  2. Step 2: Convert to fraction form
    347,272,349.76/520,512,269.40 = 139,878,012.24/x
  3. Step 3: Cross multiply
    347,272,349.76x = 520,512,269.40 × 139,878,012.24
  4. Step 4: Simplify right side
    347,272,349.76x = 72,808,221,590,203,376
  5. Step 5: Solve for x
    x = 72,808,221,590,203,376/347,272,349.76
  6. Step 6: Final answer
    x = 209,657,410.50

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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.