Home / 971,262,399.08-1,339,495,040.94-688,445,442.92

Finding the Fourth Proportional to 971,262,399.08, 1,339,495,040.94 and 688,445,442.92

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Solution

The fourth proportional to 971,262,399.08, 1,339,495,040.94 and 688,445,442.92 is: 949,454,295.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,262,399.08 : 1,339,495,040.94 = 688,445,442.92 : x
  2. Step 2: Convert to fraction form
    971,262,399.08/1,339,495,040.94 = 688,445,442.92/x
  3. Step 3: Cross multiply
    971,262,399.08x = 1,339,495,040.94 × 688,445,442.92
  4. Step 4: Simplify right side
    971,262,399.08x = 922,169,256,749,081,856
  5. Step 5: Solve for x
    x = 922,169,256,749,081,856/971,262,399.08
  6. Step 6: Final answer
    x = 949,454,295.38

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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.