Home / 590,495,999.80-885,743,999.70-314,996,985.40

Finding the Fourth Proportional to 590,495,999.80, 885,743,999.70 and 314,996,985.40

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Solution

The fourth proportional to 590,495,999.80, 885,743,999.70 and 314,996,985.40 is: 472,495,478.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,495,999.80 : 885,743,999.70 = 314,996,985.40 : x
  2. Step 2: Convert to fraction form
    590,495,999.80/885,743,999.70 = 314,996,985.40/x
  3. Step 3: Cross multiply
    590,495,999.80x = 885,743,999.70 × 314,996,985.40
  4. Step 4: Simplify right side
    590,495,999.80x = 279,006,689,741,638,496
  5. Step 5: Solve for x
    x = 279,006,689,741,638,496/590,495,999.80
  6. Step 6: Final answer
    x = 472,495,478.10

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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.