Home / 8,779,289.60-12,115,889.76-4,911,580.16

Finding the Fourth Proportional to 8,779,289.60, 12,115,889.76 and 4,911,580.16

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Solution

The fourth proportional to 8,779,289.60, 12,115,889.76 and 4,911,580.16 is: 6,778,243.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779,289.60 : 12,115,889.76 = 4,911,580.16 : x
  2. Step 2: Convert to fraction form
    8,779,289.60/12,115,889.76 = 4,911,580.16/x
  3. Step 3: Cross multiply
    8,779,289.60x = 12,115,889.76 × 4,911,580.16
  4. Step 4: Simplify right side
    8,779,289.60x = 59,508,163,765,963.16
  5. Step 5: Solve for x
    x = 59,508,163,765,963.16/8,779,289.60
  6. Step 6: Final answer
    x = 6,778,243.63

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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.