Home / 77,263,541.40-115,909,308.90-38,828,328.60

Finding the Fourth Proportional to 77,263,541.40, 115,909,308.90 and 38,828,328.60

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Solution

The fourth proportional to 77,263,541.40, 115,909,308.90 and 38,828,328.60 is: 58,249,526.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,263,541.40 : 115,909,308.90 = 38,828,328.60 : x
  2. Step 2: Convert to fraction form
    77,263,541.40/115,909,308.90 = 38,828,328.60/x
  3. Step 3: Cross multiply
    77,263,541.40x = 115,909,308.90 × 38,828,328.60
  4. Step 4: Simplify right side
    77,263,541.40x = 4,500,564,733,768,105
  5. Step 5: Solve for x
    x = 4,500,564,733,768,105/77,263,541.40
  6. Step 6: Final answer
    x = 58,249,526.91

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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.