Home / 1,770,129,968.46-2,442,715,322.28-977,158,915.98

Finding the Fourth Proportional to 1,770,129,968.46, 2,442,715,322.28 and 977,158,915.98

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Solution

The fourth proportional to 1,770,129,968.46, 2,442,715,322.28 and 977,158,915.98 is: 1,348,443,955.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,770,129,968.46 : 2,442,715,322.28 = 977,158,915.98 : x
  2. Step 2: Convert to fraction form
    1,770,129,968.46/2,442,715,322.28 = 977,158,915.98/x
  3. Step 3: Cross multiply
    1,770,129,968.46x = 2,442,715,322.28 × 977,158,915.98
  4. Step 4: Simplify right side
    1,770,129,968.46x = 2,386,921,056,366,861,312
  5. Step 5: Solve for x
    x = 2,386,921,056,366,861,312/1,770,129,968.46
  6. Step 6: Final answer
    x = 1,348,443,955.47

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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.