Home / 373,248,020.40-559,872,030.60-209,989,345.20

Finding the Fourth Proportional to 373,248,020.40, 559,872,030.60 and 209,989,345.20

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Solution

The fourth proportional to 373,248,020.40, 559,872,030.60 and 209,989,345.20 is: 314,984,017.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,248,020.40 : 559,872,030.60 = 209,989,345.20 : x
  2. Step 2: Convert to fraction form
    373,248,020.40/559,872,030.60 = 209,989,345.20/x
  3. Step 3: Cross multiply
    373,248,020.40x = 559,872,030.60 × 209,989,345.20
  4. Step 4: Simplify right side
    373,248,020.40x = 117,567,161,101,488,368
  5. Step 5: Solve for x
    x = 117,567,161,101,488,368/373,248,020.40
  6. Step 6: Final answer
    x = 314,984,017.80

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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.