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Finding the Fourth Proportional to 672,611,041.44, 928,203,814.80 and 375,253,329.60

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Solution

The fourth proportional to 672,611,041.44, 928,203,814.80 and 375,253,329.60 is: 517,849,917.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,611,041.44 : 928,203,814.80 = 375,253,329.60 : x
  2. Step 2: Convert to fraction form
    672,611,041.44/928,203,814.80 = 375,253,329.60/x
  3. Step 3: Cross multiply
    672,611,041.44x = 928,203,814.80 × 375,253,329.60
  4. Step 4: Simplify right side
    672,611,041.44x = 348,311,572,051,121,792
  5. Step 5: Solve for x
    x = 348,311,572,051,121,792/672,611,041.44
  6. Step 6: Final answer
    x = 517,849,917.10

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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.