Home / 208,303,080.64-312,506,575.32-147,011,962.88

Finding the Fourth Proportional to 208,303,080.64, 312,506,575.32 and 147,011,962.88

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Solution

The fourth proportional to 208,303,080.64, 312,506,575.32 and 147,011,962.88 is: 220,554,611.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,303,080.64 : 312,506,575.32 = 147,011,962.88 : x
  2. Step 2: Convert to fraction form
    208,303,080.64/312,506,575.32 = 147,011,962.88/x
  3. Step 3: Cross multiply
    208,303,080.64x = 312,506,575.32 × 147,011,962.88
  4. Step 4: Simplify right side
    208,303,080.64x = 45,942,205,050,699,760
  5. Step 5: Solve for x
    x = 45,942,205,050,699,760/208,303,080.64
  6. Step 6: Final answer
    x = 220,554,611.62

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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.