Home / 666,913,529.76-920,038,852.26-402,511,003.44

Finding the Fourth Proportional to 666,913,529.76, 920,038,852.26 and 402,511,003.44

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Solution

The fourth proportional to 666,913,529.76, 920,038,852.26 and 402,511,003.44 is: 555,283,024.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,913,529.76 : 920,038,852.26 = 402,511,003.44 : x
  2. Step 2: Convert to fraction form
    666,913,529.76/920,038,852.26 = 402,511,003.44/x
  3. Step 3: Cross multiply
    666,913,529.76x = 920,038,852.26 × 402,511,003.44
  4. Step 4: Simplify right side
    666,913,529.76x = 370,325,761,626,958,528
  5. Step 5: Solve for x
    x = 370,325,761,626,958,528/666,913,529.76
  6. Step 6: Final answer
    x = 555,283,024.11

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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.