Home / 288,290,575.15-432,509,526.35-83,818,650.40

Finding the Fourth Proportional to 288,290,575.15, 432,509,526.35 and 83,818,650.40

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Solution

The fourth proportional to 288,290,575.15, 432,509,526.35 and 83,818,650.40 is: 125,749,392.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,290,575.15 : 432,509,526.35 = 83,818,650.40 : x
  2. Step 2: Convert to fraction form
    288,290,575.15/432,509,526.35 = 83,818,650.40/x
  3. Step 3: Cross multiply
    288,290,575.15x = 432,509,526.35 × 83,818,650.40
  4. Step 4: Simplify right side
    288,290,575.15x = 36,252,364,783,800,240
  5. Step 5: Solve for x
    x = 36,252,364,783,800,240/288,290,575.15
  6. Step 6: Final answer
    x = 125,749,392.83

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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.