Home / 20,653,941,123.85-28,501,596,853.70-12,198,502,237.45

Finding the Fourth Proportional to 20,653,941,123.85, 28,501,596,853.70 and 12,198,502,237.45

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Solution

The fourth proportional to 20,653,941,123.85, 28,501,596,853.70 and 12,198,502,237.45 is: 16,833,435,851.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,653,941,123.85 : 28,501,596,853.70 = 12,198,502,237.45 : x
  2. Step 2: Convert to fraction form
    20,653,941,123.85/28,501,596,853.70 = 12,198,502,237.45/x
  3. Step 3: Cross multiply
    20,653,941,123.85x = 28,501,596,853.70 × 12,198,502,237.45
  4. Step 4: Simplify right side
    20,653,941,123.85x = 347,676,792,990,822,563,840
  5. Step 5: Solve for x
    x = 347,676,792,990,822,563,840/20,653,941,123.85
  6. Step 6: Final answer
    x = 16,833,435,851.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.