Finding the Fourth Proportional to 130,534,484.84, 180,137,681.05 and 71,801,618.12
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Solution
The fourth proportional to 130,534,484.84, 180,137,681.05 and 71,801,618.12 is: 99,086,283.59
Step by Step Solution
- Step 1: Write the proportion equation
130,534,484.84 : 180,137,681.05 = 71,801,618.12 : x - Step 2: Convert to fraction form
130,534,484.84/180,137,681.05 = 71,801,618.12/x - Step 3: Cross multiply
130,534,484.84x = 180,137,681.05 × 71,801,618.12 - Step 4: Simplify right side
130,534,484.84x = 12,934,176,983,774,462 - Step 5: Solve for x
x = 12,934,176,983,774,462/130,534,484.84 - Step 6: Final answer
x = 99,086,283.59
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1.5x scale
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.