Home / 100,345,407,354.84-138,480,316,370.45-54,617,473,518.60

Finding the Fourth Proportional to 100,345,407,354.84, 138,480,316,370.45 and 54,617,473,518.60

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Solution

The fourth proportional to 100,345,407,354.84, 138,480,316,370.45 and 54,617,473,518.60 is: 75,374,102,428.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,345,407,354.84 : 138,480,316,370.45 = 54,617,473,518.60 : x
  2. Step 2: Convert to fraction form
    100,345,407,354.84/138,480,316,370.45 = 54,617,473,518.60/x
  3. Step 3: Cross multiply
    100,345,407,354.84x = 138,480,316,370.45 × 54,617,473,518.60
  4. Step 4: Simplify right side
    100,345,407,354.84x = 7,563,445,012,210,403,770,368
  5. Step 5: Solve for x
    x = 7,563,445,012,210,403,770,368/100,345,407,354.84
  6. Step 6: Final answer
    x = 75,374,102,428.67

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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.