Home / 1,559,775,817.30-2,152,721,651.16-987,612,051.28

Finding the Fourth Proportional to 1,559,775,817.30, 2,152,721,651.16 and 987,612,051.28

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Solution

The fourth proportional to 1,559,775,817.30, 2,152,721,651.16 and 987,612,051.28 is: 1,363,050,909.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,559,775,817.30 : 2,152,721,651.16 = 987,612,051.28 : x
  2. Step 2: Convert to fraction form
    1,559,775,817.30/2,152,721,651.16 = 987,612,051.28/x
  3. Step 3: Cross multiply
    1,559,775,817.30x = 2,152,721,651.16 × 987,612,051.28
  4. Step 4: Simplify right side
    1,559,775,817.30x = 2,126,053,845,736,996,096
  5. Step 5: Solve for x
    x = 2,126,053,845,736,996,096/1,559,775,817.30
  6. Step 6: Final answer
    x = 1,363,050,909.08

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Double scale
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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.