Home / 646,429,129.42-969,779,875.04-209,695,712.44

Finding the Fourth Proportional to 646,429,129.42, 969,779,875.04 and 209,695,712.44

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Solution

The fourth proportional to 646,429,129.42, 969,779,875.04 and 209,695,712.44 is: 314,587,744.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,429,129.42 : 969,779,875.04 = 209,695,712.44 : x
  2. Step 2: Convert to fraction form
    646,429,129.42/969,779,875.04 = 209,695,712.44/x
  3. Step 3: Cross multiply
    646,429,129.42x = 969,779,875.04 × 209,695,712.44
  4. Step 4: Simplify right side
    646,429,129.42x = 203,358,681,804,062,528
  5. Step 5: Solve for x
    x = 203,358,681,804,062,528/646,429,129.42
  6. Step 6: Final answer
    x = 314,587,744.50

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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.