Home / 639,254,347.40-958,881,521.10-294,880,579.40

Finding the Fourth Proportional to 639,254,347.40, 958,881,521.10 and 294,880,579.40

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Solution

The fourth proportional to 639,254,347.40, 958,881,521.10 and 294,880,579.40 is: 442,320,869.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,254,347.40 : 958,881,521.10 = 294,880,579.40 : x
  2. Step 2: Convert to fraction form
    639,254,347.40/958,881,521.10 = 294,880,579.40/x
  3. Step 3: Cross multiply
    639,254,347.40x = 958,881,521.10 × 294,880,579.40
  4. Step 4: Simplify right side
    639,254,347.40x = 282,755,538,517,921,312
  5. Step 5: Solve for x
    x = 282,755,538,517,921,312/639,254,347.40
  6. Step 6: Final answer
    x = 442,320,869.10

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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.