Home / 399,406,930.80-599,176,751.40-157,077,740.40

Finding the Fourth Proportional to 399,406,930.80, 599,176,751.40 and 157,077,740.40

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Solution

The fourth proportional to 399,406,930.80, 599,176,751.40 and 157,077,740.40 is: 235,642,706.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,406,930.80 : 599,176,751.40 = 157,077,740.40 : x
  2. Step 2: Convert to fraction form
    399,406,930.80/599,176,751.40 = 157,077,740.40/x
  3. Step 3: Cross multiply
    399,406,930.80x = 599,176,751.40 × 157,077,740.40
  4. Step 4: Simplify right side
    399,406,930.80x = 94,117,330,210,124,544
  5. Step 5: Solve for x
    x = 94,117,330,210,124,544/399,406,930.80
  6. Step 6: Final answer
    x = 235,642,706.60

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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.