Home / 390,744,043.20-586,116,064.80-245,341,785.60

Finding the Fourth Proportional to 390,744,043.20, 586,116,064.80 and 245,341,785.60

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Solution

The fourth proportional to 390,744,043.20, 586,116,064.80 and 245,341,785.60 is: 368,012,678.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,744,043.20 : 586,116,064.80 = 245,341,785.60 : x
  2. Step 2: Convert to fraction form
    390,744,043.20/586,116,064.80 = 245,341,785.60/x
  3. Step 3: Cross multiply
    390,744,043.20x = 586,116,064.80 × 245,341,785.60
  4. Step 4: Simplify right side
    390,744,043.20x = 143,798,761,906,877,296
  5. Step 5: Solve for x
    x = 143,798,761,906,877,296/390,744,043.20
  6. Step 6: Final answer
    x = 368,012,678.40

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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.