Home / 698,156,670,783.56-963,479,977,820.10-405,158,908,707.36

Finding the Fourth Proportional to 698,156,670,783.56, 963,479,977,820.10 and 405,158,908,707.36

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Solution

The fourth proportional to 698,156,670,783.56, 963,479,977,820.10 and 405,158,908,707.36 is: 559,133,089,621.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,156,670,783.56 : 963,479,977,820.10 = 405,158,908,707.36 : x
  2. Step 2: Convert to fraction form
    698,156,670,783.56/963,479,977,820.10 = 405,158,908,707.36/x
  3. Step 3: Cross multiply
    698,156,670,783.56x = 963,479,977,820.10 × 405,158,908,707.36
  4. Step 4: Simplify right side
    698,156,670,783.56x = 390,362,496,374,983,129,825,280
  5. Step 5: Solve for x
    x = 390,362,496,374,983,129,825,280/698,156,670,783.56
  6. Step 6: Final answer
    x = 559,133,089,621.37

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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.