Home / 666,748,051.80-1,000,122,077.70-629,334,605.40

Finding the Fourth Proportional to 666,748,051.80, 1,000,122,077.70 and 629,334,605.40

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Solution

The fourth proportional to 666,748,051.80, 1,000,122,077.70 and 629,334,605.40 is: 944,001,908.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,748,051.80 : 1,000,122,077.70 = 629,334,605.40 : x
  2. Step 2: Convert to fraction form
    666,748,051.80/1,000,122,077.70 = 629,334,605.40/x
  3. Step 3: Cross multiply
    666,748,051.80x = 1,000,122,077.70 × 629,334,605.40
  4. Step 4: Simplify right side
    666,748,051.80x = 629,411,433,121,157,632
  5. Step 5: Solve for x
    x = 629,411,433,121,157,632/666,748,051.80
  6. Step 6: Final answer
    x = 944,001,908.10

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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.