Home / 830,459,068.90-1,244,014,564.20-518,609,490.10

Finding the Fourth Proportional to 830,459,068.90, 1,244,014,564.20 and 518,609,490.10

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Solution

The fourth proportional to 830,459,068.90, 1,244,014,564.20 and 518,609,490.10 is: 776,868,822.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,459,068.90 : 1,244,014,564.20 = 518,609,490.10 : x
  2. Step 2: Convert to fraction form
    830,459,068.90/1,244,014,564.20 = 518,609,490.10/x
  3. Step 3: Cross multiply
    830,459,068.90x = 1,244,014,564.20 × 518,609,490.10
  4. Step 4: Simplify right side
    830,459,068.90x = 645,157,758,816,735,744
  5. Step 5: Solve for x
    x = 645,157,758,816,735,744/830,459,068.90
  6. Step 6: Final answer
    x = 776,868,822.29

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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.