Home / 287,753,376.02-397,099,378.80-155,594,056.28

Finding the Fourth Proportional to 287,753,376.02, 397,099,378.80 and 155,594,056.28

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Solution

The fourth proportional to 287,753,376.02, 397,099,378.80 and 155,594,056.28 is: 214,719,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,753,376.02 : 397,099,378.80 = 155,594,056.28 : x
  2. Step 2: Convert to fraction form
    287,753,376.02/397,099,378.80 = 155,594,056.28/x
  3. Step 3: Cross multiply
    287,753,376.02x = 397,099,378.80 × 155,594,056.28
  4. Step 4: Simplify right side
    287,753,376.02x = 61,786,303,091,774,744
  5. Step 5: Solve for x
    x = 61,786,303,091,774,744/287,753,376.02
  6. Step 6: Final answer
    x = 214,719,646.20

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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.