Home / 464,073,666,721.67-640,421,690,872.48-258,303,490,139.45

Finding the Fourth Proportional to 464,073,666,721.67, 640,421,690,872.48 and 258,303,490,139.45

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Solution

The fourth proportional to 464,073,666,721.67, 640,421,690,872.48 and 258,303,490,139.45 is: 356,458,833,533.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,073,666,721.67 : 640,421,690,872.48 = 258,303,490,139.45 : x
  2. Step 2: Convert to fraction form
    464,073,666,721.67/640,421,690,872.48 = 258,303,490,139.45/x
  3. Step 3: Cross multiply
    464,073,666,721.67x = 640,421,690,872.48 × 258,303,490,139.45
  4. Step 4: Simplify right side
    464,073,666,721.67x = 165,423,157,913,369,538,723,840
  5. Step 5: Solve for x
    x = 165,423,157,913,369,538,723,840/464,073,666,721.67
  6. Step 6: Final answer
    x = 356,458,833,533.82

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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.