Home / 508,356,070.80-762,534,106.20-139,890,310.80

Finding the Fourth Proportional to 508,356,070.80, 762,534,106.20 and 139,890,310.80

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Solution

The fourth proportional to 508,356,070.80, 762,534,106.20 and 139,890,310.80 is: 209,835,466.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,356,070.80 : 762,534,106.20 = 139,890,310.80 : x
  2. Step 2: Convert to fraction form
    508,356,070.80/762,534,106.20 = 139,890,310.80/x
  3. Step 3: Cross multiply
    508,356,070.80x = 762,534,106.20 × 139,890,310.80
  4. Step 4: Simplify right side
    508,356,070.80x = 106,671,133,111,918,224
  5. Step 5: Solve for x
    x = 106,671,133,111,918,224/508,356,070.80
  6. Step 6: Final answer
    x = 209,835,466.20

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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.