Home / 280,111,509.17-386,555,751.39-152,953,070.33

Finding the Fourth Proportional to 280,111,509.17, 386,555,751.39 and 152,953,070.33

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Solution

The fourth proportional to 280,111,509.17, 386,555,751.39 and 152,953,070.33 is: 211,076,257.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,111,509.17 : 386,555,751.39 = 152,953,070.33 : x
  2. Step 2: Convert to fraction form
    280,111,509.17/386,555,751.39 = 152,953,070.33/x
  3. Step 3: Cross multiply
    280,111,509.17x = 386,555,751.39 × 152,953,070.33
  4. Step 4: Simplify right side
    280,111,509.17x = 59,124,889,028,820,672
  5. Step 5: Solve for x
    x = 59,124,889,028,820,672/280,111,509.17
  6. Step 6: Final answer
    x = 211,076,257.47

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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.