Home / 661,450,756.64-912,888,964.32-379,303,612.16

Finding the Fourth Proportional to 661,450,756.64, 912,888,964.32 and 379,303,612.16

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Solution

The fourth proportional to 661,450,756.64, 912,888,964.32 and 379,303,612.16 is: 523,488,828.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,450,756.64 : 912,888,964.32 = 379,303,612.16 : x
  2. Step 2: Convert to fraction form
    661,450,756.64/912,888,964.32 = 379,303,612.16/x
  3. Step 3: Cross multiply
    661,450,756.64x = 912,888,964.32 × 379,303,612.16
  4. Step 4: Simplify right side
    661,450,756.64x = 346,262,081,667,577,408
  5. Step 5: Solve for x
    x = 346,262,081,667,577,408/661,450,756.64
  6. Step 6: Final answer
    x = 523,488,828.45

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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.