Home / 389,142,742,139.35-583,802,130,336.26-210,064,885,208.68

Finding the Fourth Proportional to 389,142,742,139.35, 583,802,130,336.26 and 210,064,885,208.68

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Solution

The fourth proportional to 389,142,742,139.35, 583,802,130,336.26 and 210,064,885,208.68 is: 315,144,840,732.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,142,742,139.35 : 583,802,130,336.26 = 210,064,885,208.68 : x
  2. Step 2: Convert to fraction form
    389,142,742,139.35/583,802,130,336.26 = 210,064,885,208.68/x
  3. Step 3: Cross multiply
    389,142,742,139.35x = 583,802,130,336.26 × 210,064,885,208.68
  4. Step 4: Simplify right side
    389,142,742,139.35x = 122,636,327,493,669,291,556,864
  5. Step 5: Solve for x
    x = 122,636,327,493,669,291,556,864/389,142,742,139.35
  6. Step 6: Final answer
    x = 315,144,840,732.39

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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.