Home / 210,902,412.72-291,075,885.24-118,088,901.84

Finding the Fourth Proportional to 210,902,412.72, 291,075,885.24 and 118,088,901.84

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Solution

The fourth proportional to 210,902,412.72, 291,075,885.24 and 118,088,901.84 is: 162,979,793.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,902,412.72 : 291,075,885.24 = 118,088,901.84 : x
  2. Step 2: Convert to fraction form
    210,902,412.72/291,075,885.24 = 118,088,901.84/x
  3. Step 3: Cross multiply
    210,902,412.72x = 291,075,885.24 × 118,088,901.84
  4. Step 4: Simplify right side
    210,902,412.72x = 34,372,831,640,097,468
  5. Step 5: Solve for x
    x = 34,372,831,640,097,468/210,902,412.72
  6. Step 6: Final answer
    x = 162,979,793.34

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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.