Home / 661,972,090.02-913,521,440.93-383,675,038.76

Finding the Fourth Proportional to 661,972,090.02, 913,521,440.93 and 383,675,038.76

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Solution

The fourth proportional to 661,972,090.02, 913,521,440.93 and 383,675,038.76 is: 529,471,528.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,972,090.02 : 913,521,440.93 = 383,675,038.76 : x
  2. Step 2: Convert to fraction form
    661,972,090.02/913,521,440.93 = 383,675,038.76/x
  3. Step 3: Cross multiply
    661,972,090.02x = 913,521,440.93 × 383,675,038.76
  4. Step 4: Simplify right side
    661,972,090.02x = 350,495,374,250,422,784
  5. Step 5: Solve for x
    x = 350,495,374,250,422,784/661,972,090.02
  6. Step 6: Final answer
    x = 529,471,528.38

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Double scale
Find fourth proportional to 661,972,091.02, 913,521,442.31 and 383,675,039.76
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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.