Home / 766,626,899.11-1,058,817,795.93-515,294,946.16

Finding the Fourth Proportional to 766,626,899.11, 1,058,817,795.93 and 515,294,946.16

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Solution

The fourth proportional to 766,626,899.11, 1,058,817,795.93 and 515,294,946.16 is: 711,693,601.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,626,899.11 : 1,058,817,795.93 = 515,294,946.16 : x
  2. Step 2: Convert to fraction form
    766,626,899.11/1,058,817,795.93 = 515,294,946.16/x
  3. Step 3: Cross multiply
    766,626,899.11x = 1,058,817,795.93 × 515,294,946.16
  4. Step 4: Simplify right side
    766,626,899.11x = 545,603,459,146,999,232
  5. Step 5: Solve for x
    x = 545,603,459,146,999,232/766,626,899.11
  6. Step 6: Final answer
    x = 711,693,601.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.