Home / 717,736,565.20-990,477,341.58-387,711,704.20

Finding the Fourth Proportional to 717,736,565.20, 990,477,341.58 and 387,711,704.20

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Solution

The fourth proportional to 717,736,565.20, 990,477,341.58 and 387,711,704.20 is: 535,042,628.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,736,565.20 : 990,477,341.58 = 387,711,704.20 : x
  2. Step 2: Convert to fraction form
    717,736,565.20/990,477,341.58 = 387,711,704.20/x
  3. Step 3: Cross multiply
    717,736,565.20x = 990,477,341.58 × 387,711,704.20
  4. Step 4: Simplify right side
    717,736,565.20x = 384,019,658,075,467,328
  5. Step 5: Solve for x
    x = 384,019,658,075,467,328/717,736,565.20
  6. Step 6: Final answer
    x = 535,042,628.03

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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.