Home / 387,077,841.60-580,666,528.80-193,088,414.40

Finding the Fourth Proportional to 387,077,841.60, 580,666,528.80 and 193,088,414.40

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Solution

The fourth proportional to 387,077,841.60, 580,666,528.80 and 193,088,414.40 is: 289,657,446.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,077,841.60 : 580,666,528.80 = 193,088,414.40 : x
  2. Step 2: Convert to fraction form
    387,077,841.60/580,666,528.80 = 193,088,414.40/x
  3. Step 3: Cross multiply
    387,077,841.60x = 580,666,528.80 × 193,088,414.40
  4. Step 4: Simplify right side
    387,077,841.60x = 112,119,979,341,143,936
  5. Step 5: Solve for x
    x = 112,119,979,341,143,936/387,077,841.60
  6. Step 6: Final answer
    x = 289,657,446.88

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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.