Home / 717,736,615.20-990,477,410.58-387,711,754.20

Finding the Fourth Proportional to 717,736,615.20, 990,477,410.58 and 387,711,754.20

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Solution

The fourth proportional to 717,736,615.20, 990,477,410.58 and 387,711,754.20 is: 535,042,697.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,736,615.20 : 990,477,410.58 = 387,711,754.20 : x
  2. Step 2: Convert to fraction form
    717,736,615.20/990,477,410.58 = 387,711,754.20/x
  3. Step 3: Cross multiply
    717,736,615.20x = 990,477,410.58 × 387,711,754.20
  4. Step 4: Simplify right side
    717,736,615.20x = 384,019,734,351,445,440
  5. Step 5: Solve for x
    x = 384,019,734,351,445,440/717,736,615.20
  6. Step 6: Final answer
    x = 535,042,697.03

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.