Home / 390,868,338.60-586,153,208.70-118,148,466.60

Finding the Fourth Proportional to 390,868,338.60, 586,153,208.70 and 118,148,466.60

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Solution

The fourth proportional to 390,868,338.60, 586,153,208.70 and 118,148,466.60 is: 177,177,570.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,868,338.60 : 586,153,208.70 = 118,148,466.60 : x
  2. Step 2: Convert to fraction form
    390,868,338.60/586,153,208.70 = 118,148,466.60/x
  3. Step 3: Cross multiply
    390,868,338.60x = 586,153,208.70 × 118,148,466.60
  4. Step 4: Simplify right side
    390,868,338.60x = 69,253,102,800,574,784
  5. Step 5: Solve for x
    x = 69,253,102,800,574,784/390,868,338.60
  6. Step 6: Final answer
    x = 177,177,570.97

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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.