Home / 252,746,077.60-379,119,116.40-209,663,927.20

Finding the Fourth Proportional to 252,746,077.60, 379,119,116.40 and 209,663,927.20

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Solution

The fourth proportional to 252,746,077.60, 379,119,116.40 and 209,663,927.20 is: 314,495,890.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,746,077.60 : 379,119,116.40 = 209,663,927.20 : x
  2. Step 2: Convert to fraction form
    252,746,077.60/379,119,116.40 = 209,663,927.20/x
  3. Step 3: Cross multiply
    252,746,077.60x = 379,119,116.40 × 209,663,927.20
  4. Step 4: Simplify right side
    252,746,077.60x = 79,487,602,821,017,920
  5. Step 5: Solve for x
    x = 79,487,602,821,017,920/252,746,077.60
  6. Step 6: Final answer
    x = 314,495,890.80

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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.