Home / 717,502,054.32-990,152,847.36-387,477,193.32

Finding the Fourth Proportional to 717,502,054.32, 990,152,847.36 and 387,477,193.32

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Solution

The fourth proportional to 717,502,054.32, 990,152,847.36 and 387,477,193.32 is: 534,718,533.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,502,054.32 : 990,152,847.36 = 387,477,193.32 : x
  2. Step 2: Convert to fraction form
    717,502,054.32/990,152,847.36 = 387,477,193.32/x
  3. Step 3: Cross multiply
    717,502,054.32x = 990,152,847.36 × 387,477,193.32
  4. Step 4: Simplify right side
    717,502,054.32x = 383,661,646,252,859,200
  5. Step 5: Solve for x
    x = 383,661,646,252,859,200/717,502,054.32
  6. Step 6: Final answer
    x = 534,718,533.48

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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.