Home / 980,081,010.20-1,470,121,515.30-434,877,656.60

Finding the Fourth Proportional to 980,081,010.20, 1,470,121,515.30 and 434,877,656.60

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Solution

The fourth proportional to 980,081,010.20, 1,470,121,515.30 and 434,877,656.60 is: 652,316,484.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,081,010.20 : 1,470,121,515.30 = 434,877,656.60 : x
  2. Step 2: Convert to fraction form
    980,081,010.20/1,470,121,515.30 = 434,877,656.60/x
  3. Step 3: Cross multiply
    980,081,010.20x = 1,470,121,515.30 × 434,877,656.60
  4. Step 4: Simplify right side
    980,081,010.20x = 639,322,999,490,905,088
  5. Step 5: Solve for x
    x = 639,322,999,490,905,088/980,081,010.20
  6. Step 6: Final answer
    x = 652,316,484.90

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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.