Home / 1,270,120,358.64-1,904,840,415.36-349,777,920.72

Finding the Fourth Proportional to 1,270,120,358.64, 1,904,840,415.36 and 349,777,920.72

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Solution

The fourth proportional to 1,270,120,358.64, 1,904,840,415.36 and 349,777,920.72 is: 524,573,214.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,120,358.64 : 1,904,840,415.36 = 349,777,920.72 : x
  2. Step 2: Convert to fraction form
    1,270,120,358.64/1,904,840,415.36 = 349,777,920.72/x
  3. Step 3: Cross multiply
    1,270,120,358.64x = 1,904,840,415.36 × 349,777,920.72
  4. Step 4: Simplify right side
    1,270,120,358.64x = 666,271,119,788,041,984
  5. Step 5: Solve for x
    x = 666,271,119,788,041,984/1,270,120,358.64
  6. Step 6: Final answer
    x = 524,573,214.86

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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.