Home / 1,205,077,821.84-1,808,314,126.56-505,507,307.76

Finding the Fourth Proportional to 1,205,077,821.84, 1,808,314,126.56 and 505,507,307.76

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Solution

The fourth proportional to 1,205,077,821.84, 1,808,314,126.56 and 505,507,307.76 is: 758,553,505.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,077,821.84 : 1,808,314,126.56 = 505,507,307.76 : x
  2. Step 2: Convert to fraction form
    1,205,077,821.84/1,808,314,126.56 = 505,507,307.76/x
  3. Step 3: Cross multiply
    1,205,077,821.84x = 1,808,314,126.56 × 505,507,307.76
  4. Step 4: Simplify right side
    1,205,077,821.84x = 914,116,005,701,721,472
  5. Step 5: Solve for x
    x = 914,116,005,701,721,472/1,205,077,821.84
  6. Step 6: Final answer
    x = 758,553,505.12

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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.