Home / 646,824,289.60-970,236,434.40-355,578,875.20

Finding the Fourth Proportional to 646,824,289.60, 970,236,434.40 and 355,578,875.20

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Solution

The fourth proportional to 646,824,289.60, 970,236,434.40 and 355,578,875.20 is: 533,368,312.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,824,289.60 : 970,236,434.40 = 355,578,875.20 : x
  2. Step 2: Convert to fraction form
    646,824,289.60/970,236,434.40 = 355,578,875.20/x
  3. Step 3: Cross multiply
    646,824,289.60x = 970,236,434.40 × 355,578,875.20
  4. Step 4: Simplify right side
    646,824,289.60x = 344,995,580,022,010,560
  5. Step 5: Solve for x
    x = 344,995,580,022,010,560/646,824,289.60
  6. Step 6: Final answer
    x = 533,368,312.80

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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.