Home / 719,240,924.78-992,552,477.46-389,216,063.78

Finding the Fourth Proportional to 719,240,924.78, 992,552,477.46 and 389,216,063.78

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Solution

The fourth proportional to 719,240,924.78, 992,552,477.46 and 389,216,063.78 is: 537,118,168.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,240,924.78 : 992,552,477.46 = 389,216,063.78 : x
  2. Step 2: Convert to fraction form
    719,240,924.78/992,552,477.46 = 389,216,063.78/x
  3. Step 3: Cross multiply
    719,240,924.78x = 992,552,477.46 × 389,216,063.78
  4. Step 4: Simplify right side
    719,240,924.78x = 386,317,368,372,068,352
  5. Step 5: Solve for x
    x = 386,317,368,372,068,352/719,240,924.78
  6. Step 6: Final answer
    x = 537,118,168.70

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1.5x scale

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.