Home / 298,949,705.80-448,424,558.70-287,470,580.20

Finding the Fourth Proportional to 298,949,705.80, 448,424,558.70 and 287,470,580.20

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Solution

The fourth proportional to 298,949,705.80, 448,424,558.70 and 287,470,580.20 is: 431,205,870.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,949,705.80 : 448,424,558.70 = 287,470,580.20 : x
  2. Step 2: Convert to fraction form
    298,949,705.80/448,424,558.70 = 287,470,580.20/x
  3. Step 3: Cross multiply
    298,949,705.80x = 448,424,558.70 × 287,470,580.20
  4. Step 4: Simplify right side
    298,949,705.80x = 128,908,868,065,417,952
  5. Step 5: Solve for x
    x = 128,908,868,065,417,952/298,949,705.80
  6. Step 6: Final answer
    x = 431,205,870.30

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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.