Home / 687,742,977.60-1,031,614,466.40-607,121,409.60

Finding the Fourth Proportional to 687,742,977.60, 1,031,614,466.40 and 607,121,409.60

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Solution

The fourth proportional to 687,742,977.60, 1,031,614,466.40 and 607,121,409.60 is: 910,682,114.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,742,977.60 : 1,031,614,466.40 = 607,121,409.60 : x
  2. Step 2: Convert to fraction form
    687,742,977.60/1,031,614,466.40 = 607,121,409.60/x
  3. Step 3: Cross multiply
    687,742,977.60x = 1,031,614,466.40 × 607,121,409.60
  4. Step 4: Simplify right side
    687,742,977.60x = 626,315,229,004,519,808
  5. Step 5: Solve for x
    x = 626,315,229,004,519,808/687,742,977.60
  6. Step 6: Final answer
    x = 910,682,114.40

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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.