Home / 430,618,276.80-646,076,714.40-188,454,974.40

Finding the Fourth Proportional to 430,618,276.80, 646,076,714.40 and 188,454,974.40

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Solution

The fourth proportional to 430,618,276.80, 646,076,714.40 and 188,454,974.40 is: 282,747,800.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,618,276.80 : 646,076,714.40 = 188,454,974.40 : x
  2. Step 2: Convert to fraction form
    430,618,276.80/646,076,714.40 = 188,454,974.40/x
  3. Step 3: Cross multiply
    430,618,276.80x = 646,076,714.40 × 188,454,974.40
  4. Step 4: Simplify right side
    430,618,276.80x = 121,756,370,672,688,112
  5. Step 5: Solve for x
    x = 121,756,370,672,688,112/430,618,276.80
  6. Step 6: Final answer
    x = 282,747,800.62

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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.