Home / 57,004,403.60-78,663,969.48-30,898,360.94

Finding the Fourth Proportional to 57,004,403.60, 78,663,969.48 and 30,898,360.94

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Solution

The fourth proportional to 57,004,403.60, 78,663,969.48 and 30,898,360.94 is: 42,638,595.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,004,403.60 : 78,663,969.48 = 30,898,360.94 : x
  2. Step 2: Convert to fraction form
    57,004,403.60/78,663,969.48 = 30,898,360.94/x
  3. Step 3: Cross multiply
    57,004,403.60x = 78,663,969.48 × 30,898,360.94
  4. Step 4: Simplify right side
    57,004,403.60x = 2,430,587,721,966,184.50
  5. Step 5: Solve for x
    x = 2,430,587,721,966,184.50/57,004,403.60
  6. Step 6: Final answer
    x = 42,638,595.77

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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.