Home / 997,985,527.44-1,377,644,085.89-621,827,963.77

Finding the Fourth Proportional to 997,985,527.44, 1,377,644,085.89 and 621,827,963.77

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Solution

The fourth proportional to 997,985,527.44, 1,377,644,085.89 and 621,827,963.77 is: 858,386,813.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,985,527.44 : 1,377,644,085.89 = 621,827,963.77 : x
  2. Step 2: Convert to fraction form
    997,985,527.44/1,377,644,085.89 = 621,827,963.77/x
  3. Step 3: Cross multiply
    997,985,527.44x = 1,377,644,085.89 × 621,827,963.77
  4. Step 4: Simplify right side
    997,985,527.44x = 856,657,616,724,139,904
  5. Step 5: Solve for x
    x = 856,657,616,724,139,904/997,985,527.44
  6. Step 6: Final answer
    x = 858,386,813.40

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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.