Home / 371,928,050.36-513,968,579.29-278,947,133

Finding the Fourth Proportional to 371,928,050.36, 513,968,579.29 and 278,947,133

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Solution

The fourth proportional to 371,928,050.36, 513,968,579.29 and 278,947,133 is: 385,477,947.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,928,050.36 : 513,968,579.29 = 278,947,133 : x
  2. Step 2: Convert to fraction form
    371,928,050.36/513,968,579.29 = 278,947,133/x
  3. Step 3: Cross multiply
    371,928,050.36x = 513,968,579.29 × 278,947,133
  4. Step 4: Simplify right side
    371,928,050.36x = 143,370,061,645,028,688
  5. Step 5: Solve for x
    x = 143,370,061,645,028,688/371,928,050.36
  6. Step 6: Final answer
    x = 385,477,947.97

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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.