Home / 390,868,363.60-586,153,246.20-118,148,491.60

Finding the Fourth Proportional to 390,868,363.60, 586,153,246.20 and 118,148,491.60

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Solution

The fourth proportional to 390,868,363.60, 586,153,246.20 and 118,148,491.60 is: 177,177,608.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,868,363.60 : 586,153,246.20 = 118,148,491.60 : x
  2. Step 2: Convert to fraction form
    390,868,363.60/586,153,246.20 = 118,148,491.60/x
  3. Step 3: Cross multiply
    390,868,363.60x = 586,153,246.20 × 118,148,491.60
  4. Step 4: Simplify right side
    390,868,363.60x = 69,253,121,884,973,432
  5. Step 5: Solve for x
    x = 69,253,121,884,973,432/390,868,363.60
  6. Step 6: Final answer
    x = 177,177,608.46

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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.