Home / 387,077,771.60-580,666,423.80-193,088,344.40

Finding the Fourth Proportional to 387,077,771.60, 580,666,423.80 and 193,088,344.40

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Solution

The fourth proportional to 387,077,771.60, 580,666,423.80 and 193,088,344.40 is: 289,657,341.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,077,771.60 : 580,666,423.80 = 193,088,344.40 : x
  2. Step 2: Convert to fraction form
    387,077,771.60/580,666,423.80 = 193,088,344.40/x
  3. Step 3: Cross multiply
    387,077,771.60x = 580,666,423.80 × 193,088,344.40
  4. Step 4: Simplify right side
    387,077,771.60x = 112,119,918,420,210,752
  5. Step 5: Solve for x
    x = 112,119,918,420,210,752/387,077,771.60
  6. Step 6: Final answer
    x = 289,657,341.87

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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.