Home / 680,487,316.40-1,020,059,128.20-335,158,266.80

Finding the Fourth Proportional to 680,487,316.40, 1,020,059,128.20 and 335,158,266.80

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Solution

The fourth proportional to 680,487,316.40, 1,020,059,128.20 and 335,158,266.80 is: 502,406,497.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,487,316.40 : 1,020,059,128.20 = 335,158,266.80 : x
  2. Step 2: Convert to fraction form
    680,487,316.40/1,020,059,128.20 = 335,158,266.80/x
  3. Step 3: Cross multiply
    680,487,316.40x = 1,020,059,128.20 × 335,158,266.80
  4. Step 4: Simplify right side
    680,487,316.40x = 341,881,249,441,031,040
  5. Step 5: Solve for x
    x = 341,881,249,441,031,040/680,487,316.40
  6. Step 6: Final answer
    x = 502,406,497.82

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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.