Home / 431,962,931.15-647,973,128.37-151,809,962.96

Finding the Fourth Proportional to 431,962,931.15, 647,973,128.37 and 151,809,962.96

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Solution

The fourth proportional to 431,962,931.15, 647,973,128.37 and 151,809,962.96 is: 227,725,041.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,962,931.15 : 647,973,128.37 = 151,809,962.96 : x
  2. Step 2: Convert to fraction form
    431,962,931.15/647,973,128.37 = 151,809,962.96/x
  3. Step 3: Cross multiply
    431,962,931.15x = 647,973,128.37 × 151,809,962.96
  4. Step 4: Simplify right side
    431,962,931.15x = 98,368,776,613,685,168
  5. Step 5: Solve for x
    x = 98,368,776,613,685,168/431,962,931.15
  6. Step 6: Final answer
    x = 227,725,041.95

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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.