Home / 306,487,206.40-459,730,809.60-291,370,662.40

Finding the Fourth Proportional to 306,487,206.40, 459,730,809.60 and 291,370,662.40

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Solution

The fourth proportional to 306,487,206.40, 459,730,809.60 and 291,370,662.40 is: 437,055,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,487,206.40 : 459,730,809.60 = 291,370,662.40 : x
  2. Step 2: Convert to fraction form
    306,487,206.40/459,730,809.60 = 291,370,662.40/x
  3. Step 3: Cross multiply
    306,487,206.40x = 459,730,809.60 × 291,370,662.40
  4. Step 4: Simplify right side
    306,487,206.40x = 133,952,070,518,840,272
  5. Step 5: Solve for x
    x = 133,952,070,518,840,272/306,487,206.40
  6. Step 6: Final answer
    x = 437,055,993.60

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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.