Home / 310,579,430.40-465,869,145.60-238,915,814.40

Finding the Fourth Proportional to 310,579,430.40, 465,869,145.60 and 238,915,814.40

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Solution

The fourth proportional to 310,579,430.40, 465,869,145.60 and 238,915,814.40 is: 358,373,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,579,430.40 : 465,869,145.60 = 238,915,814.40 : x
  2. Step 2: Convert to fraction form
    310,579,430.40/465,869,145.60 = 238,915,814.40/x
  3. Step 3: Cross multiply
    310,579,430.40x = 465,869,145.60 × 238,915,814.40
  4. Step 4: Simplify right side
    310,579,430.40x = 111,303,506,324,856,192
  5. Step 5: Solve for x
    x = 111,303,506,324,856,192/310,579,430.40
  6. Step 6: Final answer
    x = 358,373,721.60

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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.