Home / 387,077,842.60-580,666,530.30-193,088,415.40

Finding the Fourth Proportional to 387,077,842.60, 580,666,530.30 and 193,088,415.40

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Solution

The fourth proportional to 387,077,842.60, 580,666,530.30 and 193,088,415.40 is: 289,657,448.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,077,842.60 : 580,666,530.30 = 193,088,415.40 : x
  2. Step 2: Convert to fraction form
    387,077,842.60/580,666,530.30 = 193,088,415.40/x
  3. Step 3: Cross multiply
    387,077,842.60x = 580,666,530.30 × 193,088,415.40
  4. Step 4: Simplify right side
    387,077,842.60x = 112,119,980,211,443,088
  5. Step 5: Solve for x
    x = 112,119,980,211,443,088/387,077,842.60
  6. Step 6: Final answer
    x = 289,657,448.38

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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.