Home / 771,284,247.84-1,064,697,991.14-520,728,070.50

Finding the Fourth Proportional to 771,284,247.84, 1,064,697,991.14 and 520,728,070.50

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Solution

The fourth proportional to 771,284,247.84, 1,064,697,991.14 and 520,728,070.50 is: 718,824,651.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,284,247.84 : 1,064,697,991.14 = 520,728,070.50 : x
  2. Step 2: Convert to fraction form
    771,284,247.84/1,064,697,991.14 = 520,728,070.50/x
  3. Step 3: Cross multiply
    771,284,247.84x = 1,064,697,991.14 × 520,728,070.50
  4. Step 4: Simplify right side
    771,284,247.84x = 554,418,130,591,558,272
  5. Step 5: Solve for x
    x = 554,418,130,591,558,272/771,284,247.84
  6. Step 6: Final answer
    x = 718,824,651.41

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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.