Home / 128,736,004.40-193,104,006.60-37,868,778.80

Finding the Fourth Proportional to 128,736,004.40, 193,104,006.60 and 37,868,778.80

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Solution

The fourth proportional to 128,736,004.40, 193,104,006.60 and 37,868,778.80 is: 56,803,168.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,736,004.40 : 193,104,006.60 = 37,868,778.80 : x
  2. Step 2: Convert to fraction form
    128,736,004.40/193,104,006.60 = 37,868,778.80/x
  3. Step 3: Cross multiply
    128,736,004.40x = 193,104,006.60 × 37,868,778.80
  4. Step 4: Simplify right side
    128,736,004.40x = 7,312,612,911,329,139
  5. Step 5: Solve for x
    x = 7,312,612,911,329,139/128,736,004.40
  6. Step 6: Final answer
    x = 56,803,168.20

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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.