Finding the Fourth Proportional to 785,749,427.04, 1,178,299,863.12 and 268,221,552.40
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Solution
The fourth proportional to 785,749,427.04, 1,178,299,863.12 and 268,221,552.40 is: 402,221,634.03
Step by Step Solution
- Step 1: Write the proportion equation
785,749,427.04 : 1,178,299,863.12 = 268,221,552.40 : x - Step 2: Convert to fraction form
785,749,427.04/1,178,299,863.12 = 268,221,552.40/x - Step 3: Cross multiply
785,749,427.04x = 1,178,299,863.12 × 268,221,552.40 - Step 4: Simplify right side
785,749,427.04x = 316,045,418,478,753,856 - Step 5: Solve for x
x = 316,045,418,478,753,856/785,749,427.04 - Step 6: Final answer
x = 402,221,634.03
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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.