Home / 389,931,357.60-538,349,947.92-250,943,657.76

Finding the Fourth Proportional to 389,931,357.60, 538,349,947.92 and 250,943,657.76

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Solution

The fourth proportional to 389,931,357.60, 538,349,947.92 and 250,943,657.76 is: 346,459,710.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,931,357.60 : 538,349,947.92 = 250,943,657.76 : x
  2. Step 2: Convert to fraction form
    389,931,357.60/538,349,947.92 = 250,943,657.76/x
  3. Step 3: Cross multiply
    389,931,357.60x = 538,349,947.92 × 250,943,657.76
  4. Step 4: Simplify right side
    389,931,357.60x = 135,095,505,085,950,288
  5. Step 5: Solve for x
    x = 135,095,505,085,950,288/389,931,357.60
  6. Step 6: Final answer
    x = 346,459,710.03

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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.