Home / 802,939,070-1,108,075,016.40-450,541,130.96

Finding the Fourth Proportional to 802,939,070, 1,108,075,016.40 and 450,541,130.96

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Solution

The fourth proportional to 802,939,070, 1,108,075,016.40 and 450,541,130.96 is: 621,757,477.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,939,070 : 1,108,075,016.40 = 450,541,130.96 : x
  2. Step 2: Convert to fraction form
    802,939,070/1,108,075,016.40 = 450,541,130.96/x
  3. Step 3: Cross multiply
    802,939,070x = 1,108,075,016.40 × 450,541,130.96
  4. Step 4: Simplify right side
    802,939,070x = 499,233,371,077,376,576
  5. Step 5: Solve for x
    x = 499,233,371,077,376,576/802,939,070
  6. Step 6: Final answer
    x = 621,757,477.91

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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.