Home / 646,429,125.16-969,779,868.64-209,695,708.16

Finding the Fourth Proportional to 646,429,125.16, 969,779,868.64 and 209,695,708.16

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Solution

The fourth proportional to 646,429,125.16, 969,779,868.64 and 209,695,708.16 is: 314,587,738.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,429,125.16 : 969,779,868.64 = 209,695,708.16 : x
  2. Step 2: Convert to fraction form
    646,429,125.16/969,779,868.64 = 209,695,708.16/x
  3. Step 3: Cross multiply
    646,429,125.16x = 969,779,868.64 × 209,695,708.16
  4. Step 4: Simplify right side
    646,429,125.16x = 203,358,676,313,776,576
  5. Step 5: Solve for x
    x = 203,358,676,313,776,576/646,429,125.16
  6. Step 6: Final answer
    x = 314,587,738.08

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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.