Home / 982,371,810.60-1,473,557,715.90-399,806,186.40

Finding the Fourth Proportional to 982,371,810.60, 1,473,557,715.90 and 399,806,186.40

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Solution

The fourth proportional to 982,371,810.60, 1,473,557,715.90 and 399,806,186.40 is: 599,709,279.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,371,810.60 : 1,473,557,715.90 = 399,806,186.40 : x
  2. Step 2: Convert to fraction form
    982,371,810.60/1,473,557,715.90 = 399,806,186.40/x
  3. Step 3: Cross multiply
    982,371,810.60x = 1,473,557,715.90 × 399,806,186.40
  4. Step 4: Simplify right side
    982,371,810.60x = 589,137,490,834,273,664
  5. Step 5: Solve for x
    x = 589,137,490,834,273,664/982,371,810.60
  6. Step 6: Final answer
    x = 599,709,279.60

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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.