Home / 278,048,684.40-416,947,055.40-105,468,140.40

Finding the Fourth Proportional to 278,048,684.40, 416,947,055.40 and 105,468,140.40

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Solution

The fourth proportional to 278,048,684.40, 416,947,055.40 and 105,468,140.40 is: 158,154,427.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,048,684.40 : 416,947,055.40 = 105,468,140.40 : x
  2. Step 2: Convert to fraction form
    278,048,684.40/416,947,055.40 = 105,468,140.40/x
  3. Step 3: Cross multiply
    278,048,684.40x = 416,947,055.40 × 105,468,140.40
  4. Step 4: Simplify right side
    278,048,684.40x = 43,974,630,578,293,776
  5. Step 5: Solve for x
    x = 43,974,630,578,293,776/278,048,684.40
  6. Step 6: Final answer
    x = 158,154,427.79

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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.