Home / 479,011,566.28-660,911,009.70-280,666,500.16

Finding the Fourth Proportional to 479,011,566.28, 660,911,009.70 and 280,666,500.16

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Solution

The fourth proportional to 479,011,566.28, 660,911,009.70 and 280,666,500.16 is: 387,246,557.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,011,566.28 : 660,911,009.70 = 280,666,500.16 : x
  2. Step 2: Convert to fraction form
    479,011,566.28/660,911,009.70 = 280,666,500.16/x
  3. Step 3: Cross multiply
    479,011,566.28x = 660,911,009.70 × 280,666,500.16
  4. Step 4: Simplify right side
    479,011,566.28x = 185,495,580,009,710,848
  5. Step 5: Solve for x
    x = 185,495,580,009,710,848/479,011,566.28
  6. Step 6: Final answer
    x = 387,246,557.43

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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.