Home / 528,657,189.84-729,559,072.94-290,517,179.58

Finding the Fourth Proportional to 528,657,189.84, 729,559,072.94 and 290,517,179.58

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Solution

The fourth proportional to 528,657,189.84, 729,559,072.94 and 290,517,179.58 is: 400,920,385.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,657,189.84 : 729,559,072.94 = 290,517,179.58 : x
  2. Step 2: Convert to fraction form
    528,657,189.84/729,559,072.94 = 290,517,179.58/x
  3. Step 3: Cross multiply
    528,657,189.84x = 729,559,072.94 × 290,517,179.58
  4. Step 4: Simplify right side
    528,657,189.84x = 211,949,444,206,075,680
  5. Step 5: Solve for x
    x = 211,949,444,206,075,680/528,657,189.84
  6. Step 6: Final answer
    x = 400,920,385.23

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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.