Home / 287,875,683.60-430,963,219.80-190,940,845.20

Finding the Fourth Proportional to 287,875,683.60, 430,963,219.80 and 190,940,845.20

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Solution

The fourth proportional to 287,875,683.60, 430,963,219.80 and 190,940,845.20 is: 285,847,281.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,875,683.60 : 430,963,219.80 = 190,940,845.20 : x
  2. Step 2: Convert to fraction form
    287,875,683.60/430,963,219.80 = 190,940,845.20/x
  3. Step 3: Cross multiply
    287,875,683.60x = 430,963,219.80 × 190,940,845.20
  4. Step 4: Simplify right side
    287,875,683.60x = 82,288,481,438,725,376
  5. Step 5: Solve for x
    x = 82,288,481,438,725,376/287,875,683.60
  6. Step 6: Final answer
    x = 285,847,281.05

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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.