Home / 393,312,011.60-589,968,017.40-270,868,005.20

Finding the Fourth Proportional to 393,312,011.60, 589,968,017.40 and 270,868,005.20

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Solution

The fourth proportional to 393,312,011.60, 589,968,017.40 and 270,868,005.20 is: 406,302,007.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,312,011.60 : 589,968,017.40 = 270,868,005.20 : x
  2. Step 2: Convert to fraction form
    393,312,011.60/589,968,017.40 = 270,868,005.20/x
  3. Step 3: Cross multiply
    393,312,011.60x = 589,968,017.40 × 270,868,005.20
  4. Step 4: Simplify right side
    393,312,011.60x = 159,803,460,004,936,864
  5. Step 5: Solve for x
    x = 159,803,460,004,936,864/393,312,011.60
  6. Step 6: Final answer
    x = 406,302,007.80

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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.