Home / 340,992,031.20-511,488,046.80-312,774,482.40

Finding the Fourth Proportional to 340,992,031.20, 511,488,046.80 and 312,774,482.40

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Solution

The fourth proportional to 340,992,031.20, 511,488,046.80 and 312,774,482.40 is: 469,161,723.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,992,031.20 : 511,488,046.80 = 312,774,482.40 : x
  2. Step 2: Convert to fraction form
    340,992,031.20/511,488,046.80 = 312,774,482.40/x
  3. Step 3: Cross multiply
    340,992,031.20x = 511,488,046.80 × 312,774,482.40
  4. Step 4: Simplify right side
    340,992,031.20x = 159,980,409,091,656,960
  5. Step 5: Solve for x
    x = 159,980,409,091,656,960/340,992,031.20
  6. Step 6: Final answer
    x = 469,161,723.60

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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.