Home / 358,875,055.81-538,408,280.04-128,846,133.37

Finding the Fourth Proportional to 358,875,055.81, 538,408,280.04 and 128,846,133.37

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Solution

The fourth proportional to 358,875,055.81, 538,408,280.04 and 128,846,133.37 is: 193,303,557.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,875,055.81 : 538,408,280.04 = 128,846,133.37 : x
  2. Step 2: Convert to fraction form
    358,875,055.81/538,408,280.04 = 128,846,133.37/x
  3. Step 3: Cross multiply
    358,875,055.81x = 538,408,280.04 × 128,846,133.37
  4. Step 4: Simplify right side
    358,875,055.81x = 69,371,825,057,546,144
  5. Step 5: Solve for x
    x = 69,371,825,057,546,144/358,875,055.81
  6. Step 6: Final answer
    x = 193,303,557.70

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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.