Home / 410,102,971.61-565,943,529.79-221,931,218.32

Finding the Fourth Proportional to 410,102,971.61, 565,943,529.79 and 221,931,218.32

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Solution

The fourth proportional to 410,102,971.61, 565,943,529.79 and 221,931,218.32 is: 306,265,854.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,102,971.61 : 565,943,529.79 = 221,931,218.32 : x
  2. Step 2: Convert to fraction form
    410,102,971.61/565,943,529.79 = 221,931,218.32/x
  3. Step 3: Cross multiply
    410,102,971.61x = 565,943,529.79 × 221,931,218.32
  4. Step 4: Simplify right side
    410,102,971.61x = 125,600,537,065,478,464
  5. Step 5: Solve for x
    x = 125,600,537,065,478,464/410,102,971.61
  6. Step 6: Final answer
    x = 306,265,854.58

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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.