Home / 7,139,205,814.62-9,841,720,488.15-4,989,137,100.06

Finding the Fourth Proportional to 7,139,205,814.62, 9,841,720,488.15 and 4,989,137,100.06

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Solution

The fourth proportional to 7,139,205,814.62, 9,841,720,488.15 and 4,989,137,100.06 is: 6,877,752,804.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139,205,814.62 : 9,841,720,488.15 = 4,989,137,100.06 : x
  2. Step 2: Convert to fraction form
    7,139,205,814.62/9,841,720,488.15 = 4,989,137,100.06/x
  3. Step 3: Cross multiply
    7,139,205,814.62x = 9,841,720,488.15 × 4,989,137,100.06
  4. Step 4: Simplify right side
    7,139,205,814.62x = 49,101,692,815,849,783,296
  5. Step 5: Solve for x
    x = 49,101,692,815,849,783,296/7,139,205,814.62
  6. Step 6: Final answer
    x = 6,877,752,804.84

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1.5x scale

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.