Home / 526,075,479.81-725,985,574.07-291,142,341.09

Finding the Fourth Proportional to 526,075,479.81, 725,985,574.07 and 291,142,341.09

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Solution

The fourth proportional to 526,075,479.81, 725,985,574.07 and 291,142,341.09 is: 401,777,212.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,075,479.81 : 725,985,574.07 = 291,142,341.09 : x
  2. Step 2: Convert to fraction form
    526,075,479.81/725,985,574.07 = 291,142,341.09/x
  3. Step 3: Cross multiply
    526,075,479.81x = 725,985,574.07 × 291,142,341.09
  4. Step 4: Simplify right side
    526,075,479.81x = 211,365,139,630,851,680
  5. Step 5: Solve for x
    x = 211,365,139,630,851,680/526,075,479.81
  6. Step 6: Final answer
    x = 401,777,212.10

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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.