Home / 103,637,556,085.60-155,456,334,128.40-84,808,920,320.20

Finding the Fourth Proportional to 103,637,556,085.60, 155,456,334,128.40 and 84,808,920,320.20

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Solution

The fourth proportional to 103,637,556,085.60, 155,456,334,128.40 and 84,808,920,320.20 is: 127,213,380,480.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,637,556,085.60 : 155,456,334,128.40 = 84,808,920,320.20 : x
  2. Step 2: Convert to fraction form
    103,637,556,085.60/155,456,334,128.40 = 84,808,920,320.20/x
  3. Step 3: Cross multiply
    103,637,556,085.60x = 155,456,334,128.40 × 84,808,920,320.20
  4. Step 4: Simplify right side
    103,637,556,085.60x = 13,184,083,854,365,862,920,192
  5. Step 5: Solve for x
    x = 13,184,083,854,365,862,920,192/103,637,556,085.60
  6. Step 6: Final answer
    x = 127,213,380,480.30

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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.