Home / 711,184,045,985.66-981,408,590,176.65-402,528,778,094.15

Finding the Fourth Proportional to 711,184,045,985.66, 981,408,590,176.65 and 402,528,778,094.15

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Solution

The fourth proportional to 711,184,045,985.66, 981,408,590,176.65 and 402,528,778,094.15 is: 555,475,341,221.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,184,045,985.66 : 981,408,590,176.65 = 402,528,778,094.15 : x
  2. Step 2: Convert to fraction form
    711,184,045,985.66/981,408,590,176.65 = 402,528,778,094.15/x
  3. Step 3: Cross multiply
    711,184,045,985.66x = 981,408,590,176.65 × 402,528,778,094.15
  4. Step 4: Simplify right side
    711,184,045,985.66x = 395,045,200,614,909,385,113,600
  5. Step 5: Solve for x
    x = 395,045,200,614,909,385,113,600/711,184,045,985.66
  6. Step 6: Final answer
    x = 555,475,341,221.13

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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.