Home / 156,362,001.88-215,779,478.94-85,798,075.42

Finding the Fourth Proportional to 156,362,001.88, 215,779,478.94 and 85,798,075.42

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Solution

The fourth proportional to 156,362,001.88, 215,779,478.94 and 85,798,075.42 is: 118,401,298.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,362,001.88 : 215,779,478.94 = 85,798,075.42 : x
  2. Step 2: Convert to fraction form
    156,362,001.88/215,779,478.94 = 85,798,075.42/x
  3. Step 3: Cross multiply
    156,362,001.88x = 215,779,478.94 × 85,798,075.42
  4. Step 4: Simplify right side
    156,362,001.88x = 18,513,464,008,182,420
  5. Step 5: Solve for x
    x = 18,513,464,008,182,420/156,362,001.88
  6. Step 6: Final answer
    x = 118,401,298.18

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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.