Home / 985,465,063.72-1,359,942,213.66-539,430,971.08

Finding the Fourth Proportional to 985,465,063.72, 1,359,942,213.66 and 539,430,971.08

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Solution

The fourth proportional to 985,465,063.72, 1,359,942,213.66 and 539,430,971.08 is: 744,414,973.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,465,063.72 : 1,359,942,213.66 = 539,430,971.08 : x
  2. Step 2: Convert to fraction form
    985,465,063.72/1,359,942,213.66 = 539,430,971.08/x
  3. Step 3: Cross multiply
    985,465,063.72x = 1,359,942,213.66 × 539,430,971.08
  4. Step 4: Simplify right side
    985,465,063.72x = 733,594,948,927,298,688
  5. Step 5: Solve for x
    x = 733,594,948,927,298,688/985,465,063.72
  6. Step 6: Final answer
    x = 744,414,973.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.