Home / 357,319,392.80-535,979,089.20-127,295,981.60

Finding the Fourth Proportional to 357,319,392.80, 535,979,089.20 and 127,295,981.60

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Solution

The fourth proportional to 357,319,392.80, 535,979,089.20 and 127,295,981.60 is: 190,943,972.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,319,392.80 : 535,979,089.20 = 127,295,981.60 : x
  2. Step 2: Convert to fraction form
    357,319,392.80/535,979,089.20 = 127,295,981.60/x
  3. Step 3: Cross multiply
    357,319,392.80x = 535,979,089.20 × 127,295,981.60
  4. Step 4: Simplify right side
    357,319,392.80x = 68,227,984,276,787,952
  5. Step 5: Solve for x
    x = 68,227,984,276,787,952/357,319,392.80
  6. Step 6: Final answer
    x = 190,943,972.40

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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.