Home / 288,002,978,300.16-431,570,632,106.88-256,616,838,132.48

Finding the Fourth Proportional to 288,002,978,300.16, 431,570,632,106.88 and 256,616,838,132.48

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Solution

The fourth proportional to 288,002,978,300.16, 431,570,632,106.88 and 256,616,838,132.48 is: 384,538,700,591.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,002,978,300.16 : 431,570,632,106.88 = 256,616,838,132.48 : x
  2. Step 2: Convert to fraction form
    288,002,978,300.16/431,570,632,106.88 = 256,616,838,132.48/x
  3. Step 3: Cross multiply
    288,002,978,300.16x = 431,570,632,106.88 × 256,616,838,132.48
  4. Step 4: Simplify right side
    288,002,978,300.16x = 110,748,291,042,103,303,077,888
  5. Step 5: Solve for x
    x = 110,748,291,042,103,303,077,888/288,002,978,300.16
  6. Step 6: Final answer
    x = 384,538,700,591.77

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1.5x scale

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.