Home / 375,865,824.70-518,688,473.86-210,849,851.26

Finding the Fourth Proportional to 375,865,824.70, 518,688,473.86 and 210,849,851.26

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Solution

The fourth proportional to 375,865,824.70, 518,688,473.86 and 210,849,851.26 is: 290,969,224.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,865,824.70 : 518,688,473.86 = 210,849,851.26 : x
  2. Step 2: Convert to fraction form
    375,865,824.70/518,688,473.86 = 210,849,851.26/x
  3. Step 3: Cross multiply
    375,865,824.70x = 518,688,473.86 × 210,849,851.26
  4. Step 4: Simplify right side
    375,865,824.70x = 109,365,387,563,657,392
  5. Step 5: Solve for x
    x = 109,365,387,563,657,392/375,865,824.70
  6. Step 6: Final answer
    x = 290,969,224.59

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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.