Home / 18,871,064.16-28,269,602.90-9,779,125.83

Finding the Fourth Proportional to 18,871,064.16, 28,269,602.90 and 9,779,125.83

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Solution

The fourth proportional to 18,871,064.16, 28,269,602.90 and 9,779,125.83 is: 14,649,518.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,871,064.16 : 28,269,602.90 = 9,779,125.83 : x
  2. Step 2: Convert to fraction form
    18,871,064.16/28,269,602.90 = 9,779,125.83/x
  3. Step 3: Cross multiply
    18,871,064.16x = 28,269,602.90 × 9,779,125.83
  4. Step 4: Simplify right side
    18,871,064.16x = 276,452,004,017,020
  5. Step 5: Solve for x
    x = 276,452,004,017,020/18,871,064.16
  6. Step 6: Final answer
    x = 14,649,518.52

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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.