Home / 1,570,570,861.02-2,167,484,757.27-865,721,252.70

Finding the Fourth Proportional to 1,570,570,861.02, 2,167,484,757.27 and 865,721,252.70

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Solution

The fourth proportional to 1,570,570,861.02, 2,167,484,757.27 and 865,721,252.70 is: 1,194,748,779.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570,570,861.02 : 2,167,484,757.27 = 865,721,252.70 : x
  2. Step 2: Convert to fraction form
    1,570,570,861.02/2,167,484,757.27 = 865,721,252.70/x
  3. Step 3: Cross multiply
    1,570,570,861.02x = 2,167,484,757.27 × 865,721,252.70
  4. Step 4: Simplify right side
    1,570,570,861.02x = 1,876,437,619,271,939,840
  5. Step 5: Solve for x
    x = 1,876,437,619,271,939,840/1,570,570,861.02
  6. Step 6: Final answer
    x = 1,194,748,779.47

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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.