Home / 1,320,099,480,547.60-1,980,149,220,821.40-918,421,917,552.45

Finding the Fourth Proportional to 1,320,099,480,547.60, 1,980,149,220,821.40 and 918,421,917,552.45

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Solution

The fourth proportional to 1,320,099,480,547.60, 1,980,149,220,821.40 and 918,421,917,552.45 is: 1,377,632,876,328.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,099,480,547.60 : 1,980,149,220,821.40 = 918,421,917,552.45 : x
  2. Step 2: Convert to fraction form
    1,320,099,480,547.60/1,980,149,220,821.40 = 918,421,917,552.45/x
  3. Step 3: Cross multiply
    1,320,099,480,547.60x = 1,980,149,220,821.40 × 918,421,917,552.45
  4. Step 4: Simplify right side
    1,320,099,480,547.60x = 1,818,612,444,426,779,632,861,184
  5. Step 5: Solve for x
    x = 1,818,612,444,426,779,632,861,184/1,320,099,480,547.60
  6. Step 6: Final answer
    x = 1,377,632,876,328.67

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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.