Home / 104,992,457.40-157,488,686.10-68,712,751.80

Finding the Fourth Proportional to 104,992,457.40, 157,488,686.10 and 68,712,751.80

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Solution

The fourth proportional to 104,992,457.40, 157,488,686.10 and 68,712,751.80 is: 103,069,127.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,992,457.40 : 157,488,686.10 = 68,712,751.80 : x
  2. Step 2: Convert to fraction form
    104,992,457.40/157,488,686.10 = 68,712,751.80/x
  3. Step 3: Cross multiply
    104,992,457.40x = 157,488,686.10 × 68,712,751.80
  4. Step 4: Simplify right side
    104,992,457.40x = 10,821,480,999,297,410
  5. Step 5: Solve for x
    x = 10,821,480,999,297,410/104,992,457.40
  6. Step 6: Final answer
    x = 103,069,127.70

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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.