Home / 687,211,683.24-1,031,134,548.45-313,834,030.93

Finding the Fourth Proportional to 687,211,683.24, 1,031,134,548.45 and 313,834,030.93

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Solution

The fourth proportional to 687,211,683.24, 1,031,134,548.45 and 313,834,030.93 is: 470,895,823.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,211,683.24 : 1,031,134,548.45 = 313,834,030.93 : x
  2. Step 2: Convert to fraction form
    687,211,683.24/1,031,134,548.45 = 313,834,030.93/x
  3. Step 3: Cross multiply
    687,211,683.24x = 1,031,134,548.45 × 313,834,030.93
  4. Step 4: Simplify right side
    687,211,683.24x = 323,605,111,771,248,896
  5. Step 5: Solve for x
    x = 323,605,111,771,248,896/687,211,683.24
  6. Step 6: Final answer
    x = 470,895,823.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.