Home / 340,826,628.80-511,239,943.20-286,407,070.40

Finding the Fourth Proportional to 340,826,628.80, 511,239,943.20 and 286,407,070.40

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Solution

The fourth proportional to 340,826,628.80, 511,239,943.20 and 286,407,070.40 is: 429,610,605.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,826,628.80 : 511,239,943.20 = 286,407,070.40 : x
  2. Step 2: Convert to fraction form
    340,826,628.80/511,239,943.20 = 286,407,070.40/x
  3. Step 3: Cross multiply
    340,826,628.80x = 511,239,943.20 × 286,407,070.40
  4. Step 4: Simplify right side
    340,826,628.80x = 146,422,734,403,374,400
  5. Step 5: Solve for x
    x = 146,422,734,403,374,400/340,826,628.80
  6. Step 6: Final answer
    x = 429,610,605.60

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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.