Home / 1,297,807,071.77-1,946,710,630.22-315,226,990.21

Finding the Fourth Proportional to 1,297,807,071.77, 1,946,710,630.22 and 315,226,990.21

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Solution

The fourth proportional to 1,297,807,071.77, 1,946,710,630.22 and 315,226,990.21 is: 472,840,490.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,807,071.77 : 1,946,710,630.22 = 315,226,990.21 : x
  2. Step 2: Convert to fraction form
    1,297,807,071.77/1,946,710,630.22 = 315,226,990.21/x
  3. Step 3: Cross multiply
    1,297,807,071.77x = 1,946,710,630.22 × 315,226,990.21
  4. Step 4: Simplify right side
    1,297,807,071.77x = 613,655,732,762,753,152
  5. Step 5: Solve for x
    x = 613,655,732,762,753,152/1,297,807,071.77
  6. Step 6: Final answer
    x = 472,840,490.79

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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.