Home / 861,277,404.40-1,291,916,106.60-402,112,380.40

Finding the Fourth Proportional to 861,277,404.40, 1,291,916,106.60 and 402,112,380.40

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Solution

The fourth proportional to 861,277,404.40, 1,291,916,106.60 and 402,112,380.40 is: 603,168,570.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,277,404.40 : 1,291,916,106.60 = 402,112,380.40 : x
  2. Step 2: Convert to fraction form
    861,277,404.40/1,291,916,106.60 = 402,112,380.40/x
  3. Step 3: Cross multiply
    861,277,404.40x = 1,291,916,106.60 × 402,112,380.40
  4. Step 4: Simplify right side
    861,277,404.40x = 519,495,460,902,026,112
  5. Step 5: Solve for x
    x = 519,495,460,902,026,112/861,277,404.40
  6. Step 6: Final answer
    x = 603,168,570.60

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1.5x scale

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.