Home / 358,725,289.60-538,087,934.40-99,980,444.80

Finding the Fourth Proportional to 358,725,289.60, 538,087,934.40 and 99,980,444.80

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Solution

The fourth proportional to 358,725,289.60, 538,087,934.40 and 99,980,444.80 is: 149,970,667.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,725,289.60 : 538,087,934.40 = 99,980,444.80 : x
  2. Step 2: Convert to fraction form
    358,725,289.60/538,087,934.40 = 99,980,444.80/x
  3. Step 3: Cross multiply
    358,725,289.60x = 538,087,934.40 × 99,980,444.80
  4. Step 4: Simplify right side
    358,725,289.60x = 53,798,271,022,825,216
  5. Step 5: Solve for x
    x = 53,798,271,022,825,216/358,725,289.60
  6. Step 6: Final answer
    x = 149,970,667.20

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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.