Home / 15,655,421.10-21,604,637.61-8,779,755.54

Finding the Fourth Proportional to 15,655,421.10, 21,604,637.61 and 8,779,755.54

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Solution

The fourth proportional to 15,655,421.10, 21,604,637.61 and 8,779,755.54 is: 12,116,150.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,655,421.10 : 21,604,637.61 = 8,779,755.54 : x
  2. Step 2: Convert to fraction form
    15,655,421.10/21,604,637.61 = 8,779,755.54/x
  3. Step 3: Cross multiply
    15,655,421.10x = 21,604,637.61 × 8,779,755.54
  4. Step 4: Simplify right side
    15,655,421.10x = 189,683,436,746,089.84
  5. Step 5: Solve for x
    x = 189,683,436,746,089.84/15,655,421.10
  6. Step 6: Final answer
    x = 12,116,150.41

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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.