Home / 646,994,415.40-970,491,623.10-402,106,402.60

Finding the Fourth Proportional to 646,994,415.40, 970,491,623.10 and 402,106,402.60

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Solution

The fourth proportional to 646,994,415.40, 970,491,623.10 and 402,106,402.60 is: 603,159,603.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,994,415.40 : 970,491,623.10 = 402,106,402.60 : x
  2. Step 2: Convert to fraction form
    646,994,415.40/970,491,623.10 = 402,106,402.60/x
  3. Step 3: Cross multiply
    646,994,415.40x = 970,491,623.10 × 402,106,402.60
  4. Step 4: Simplify right side
    646,994,415.40x = 390,240,895,318,176,064
  5. Step 5: Solve for x
    x = 390,240,895,318,176,064/646,994,415.40
  6. Step 6: Final answer
    x = 603,159,603.90

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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.