Home / 30,550,500,386.64-42,157,411,421.40-17,181,910,712.88

Finding the Fourth Proportional to 30,550,500,386.64, 42,157,411,421.40 and 17,181,910,712.88

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Solution

The fourth proportional to 30,550,500,386.64, 42,157,411,421.40 and 17,181,910,712.88 is: 23,709,754,988.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,550,500,386.64 : 42,157,411,421.40 = 17,181,910,712.88 : x
  2. Step 2: Convert to fraction form
    30,550,500,386.64/42,157,411,421.40 = 17,181,910,712.88/x
  3. Step 3: Cross multiply
    30,550,500,386.64x = 42,157,411,421.40 × 17,181,910,712.88
  4. Step 4: Simplify right side
    30,550,500,386.64x = 724,344,878,928,642,441,216
  5. Step 5: Solve for x
    x = 724,344,878,928,642,441,216/30,550,500,386.64
  6. Step 6: Final answer
    x = 23,709,754,988.02

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Double scale
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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.