Home / 497,931,015.18-686,506,071.42-408,292,697.28

Finding the Fourth Proportional to 497,931,015.18, 686,506,071.42 and 408,292,697.28

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Solution

The fourth proportional to 497,931,015.18, 686,506,071.42 and 408,292,697.28 is: 562,920,177.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,931,015.18 : 686,506,071.42 = 408,292,697.28 : x
  2. Step 2: Convert to fraction form
    497,931,015.18/686,506,071.42 = 408,292,697.28/x
  3. Step 3: Cross multiply
    497,931,015.18x = 686,506,071.42 × 408,292,697.28
  4. Step 4: Simplify right side
    497,931,015.18x = 280,295,415,599,168,096
  5. Step 5: Solve for x
    x = 280,295,415,599,168,096/497,931,015.18
  6. Step 6: Final answer
    x = 562,920,177.80

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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.