Home / 71,406,397,940.40-98,537,870,088.36-38,853,745,995.60

Finding the Fourth Proportional to 71,406,397,940.40, 98,537,870,088.36 and 38,853,745,995.60

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Solution

The fourth proportional to 71,406,397,940.40, 98,537,870,088.36 and 38,853,745,995.60 is: 53,616,559,381.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,406,397,940.40 : 98,537,870,088.36 = 38,853,745,995.60 : x
  2. Step 2: Convert to fraction form
    71,406,397,940.40/98,537,870,088.36 = 38,853,745,995.60/x
  3. Step 3: Cross multiply
    71,406,397,940.40x = 98,537,870,088.36 × 38,853,745,995.60
  4. Step 4: Simplify right side
    71,406,397,940.40x = 3,828,565,375,360,570,490,880
  5. Step 5: Solve for x
    x = 3,828,565,375,360,570,490,880/71,406,397,940.40
  6. Step 6: Final answer
    x = 53,616,559,381.08

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1.5x scale

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.