Home / 209,389,938.40-288,952,483.12-116,570,444.32

Finding the Fourth Proportional to 209,389,938.40, 288,952,483.12 and 116,570,444.32

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Solution

The fourth proportional to 209,389,938.40, 288,952,483.12 and 116,570,444.32 is: 160,864,077.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,389,938.40 : 288,952,483.12 = 116,570,444.32 : x
  2. Step 2: Convert to fraction form
    209,389,938.40/288,952,483.12 = 116,570,444.32/x
  3. Step 3: Cross multiply
    209,389,938.40x = 288,952,483.12 × 116,570,444.32
  4. Step 4: Simplify right side
    209,389,938.40x = 33,683,319,344,665,700
  5. Step 5: Solve for x
    x = 33,683,319,344,665,700/209,389,938.40
  6. Step 6: Final answer
    x = 160,864,077.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.