Home / 390,744,007.20-586,116,010.80-245,341,749.60

Finding the Fourth Proportional to 390,744,007.20, 586,116,010.80 and 245,341,749.60

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Solution

The fourth proportional to 390,744,007.20, 586,116,010.80 and 245,341,749.60 is: 368,012,624.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,744,007.20 : 586,116,010.80 = 245,341,749.60 : x
  2. Step 2: Convert to fraction form
    390,744,007.20/586,116,010.80 = 245,341,749.60/x
  3. Step 3: Cross multiply
    390,744,007.20x = 586,116,010.80 × 245,341,749.60
  4. Step 4: Simplify right side
    390,744,007.20x = 143,798,727,558,244,480
  5. Step 5: Solve for x
    x = 143,798,727,558,244,480/390,744,007.20
  6. Step 6: Final answer
    x = 368,012,624.40

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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.