Home / 989,938,357.20-1,484,907,535.80-376,442,866.80

Finding the Fourth Proportional to 989,938,357.20, 1,484,907,535.80 and 376,442,866.80

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Solution

The fourth proportional to 989,938,357.20, 1,484,907,535.80 and 376,442,866.80 is: 564,664,300.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,938,357.20 : 1,484,907,535.80 = 376,442,866.80 : x
  2. Step 2: Convert to fraction form
    989,938,357.20/1,484,907,535.80 = 376,442,866.80/x
  3. Step 3: Cross multiply
    989,938,357.20x = 1,484,907,535.80 × 376,442,866.80
  4. Step 4: Simplify right side
    989,938,357.20x = 558,982,849,709,475,648
  5. Step 5: Solve for x
    x = 558,982,849,709,475,648/989,938,357.20
  6. Step 6: Final answer
    x = 564,664,300.20

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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.