Home / 1,119,120,007.30-1,678,680,010.95-710,973,319.30

Finding the Fourth Proportional to 1,119,120,007.30, 1,678,680,010.95 and 710,973,319.30

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Solution

The fourth proportional to 1,119,120,007.30, 1,678,680,010.95 and 710,973,319.30 is: 1,066,459,978.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,120,007.30 : 1,678,680,010.95 = 710,973,319.30 : x
  2. Step 2: Convert to fraction form
    1,119,120,007.30/1,678,680,010.95 = 710,973,319.30/x
  3. Step 3: Cross multiply
    1,119,120,007.30x = 1,678,680,010.95 × 710,973,319.30
  4. Step 4: Simplify right side
    1,119,120,007.30x = 1,193,496,699,427,681,792
  5. Step 5: Solve for x
    x = 1,193,496,699,427,681,792/1,119,120,007.30
  6. Step 6: Final answer
    x = 1,066,459,978.95

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Double scale
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1.5x scale

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.