Home / 527,179,211.34-790,760,014.74-128,341,985.37

Finding the Fourth Proportional to 527,179,211.34, 790,760,014.74 and 128,341,985.37

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Solution

The fourth proportional to 527,179,211.34, 790,760,014.74 and 128,341,985.37 is: 192,510,835.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,179,211.34 : 790,760,014.74 = 128,341,985.37 : x
  2. Step 2: Convert to fraction form
    527,179,211.34/790,760,014.74 = 128,341,985.37/x
  3. Step 3: Cross multiply
    527,179,211.34x = 790,760,014.74 × 128,341,985.37
  4. Step 4: Simplify right side
    527,179,211.34x = 101,487,710,242,942,064
  5. Step 5: Solve for x
    x = 101,487,710,242,942,064/527,179,211.34
  6. Step 6: Final answer
    x = 192,510,835.14

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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.