Home / 256,433,064,431.60-384,649,596,647.40-215,291,878,281.20

Finding the Fourth Proportional to 256,433,064,431.60, 384,649,596,647.40 and 215,291,878,281.20

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Solution

The fourth proportional to 256,433,064,431.60, 384,649,596,647.40 and 215,291,878,281.20 is: 322,937,817,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,433,064,431.60 : 384,649,596,647.40 = 215,291,878,281.20 : x
  2. Step 2: Convert to fraction form
    256,433,064,431.60/384,649,596,647.40 = 215,291,878,281.20/x
  3. Step 3: Cross multiply
    256,433,064,431.60x = 384,649,596,647.40 × 215,291,878,281.20
  4. Step 4: Simplify right side
    256,433,064,431.60x = 82,811,934,142,324,726,038,528
  5. Step 5: Solve for x
    x = 82,811,934,142,324,726,038,528/256,433,064,431.60
  6. Step 6: Final answer
    x = 322,937,817,421.80

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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.