Home / 989,291,271.30-1,483,984,633.02-325,290,590.40

Finding the Fourth Proportional to 989,291,271.30, 1,483,984,633.02 and 325,290,590.40

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Solution

The fourth proportional to 989,291,271.30, 1,483,984,633.02 and 325,290,590.40 is: 487,951,578.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,291,271.30 : 1,483,984,633.02 = 325,290,590.40 : x
  2. Step 2: Convert to fraction form
    989,291,271.30/1,483,984,633.02 = 325,290,590.40/x
  3. Step 3: Cross multiply
    989,291,271.30x = 1,483,984,633.02 × 325,290,590.40
  4. Step 4: Simplify right side
    989,291,271.30x = 482,726,237,413,616,960
  5. Step 5: Solve for x
    x = 482,726,237,413,616,960/989,291,271.30
  6. Step 6: Final answer
    x = 487,951,578.48

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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.