Finding the Fourth Proportional to 1,386,465,453.58, 1,913,527,679.58 and 877,875,438.54
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Solution
The fourth proportional to 1,386,465,453.58, 1,913,527,679.58 and 877,875,438.54 is: 1,211,598,130.00
Step by Step Solution
- Step 1: Write the proportion equation
1,386,465,453.58 : 1,913,527,679.58 = 877,875,438.54 : x - Step 2: Convert to fraction form
1,386,465,453.58/1,913,527,679.58 = 877,875,438.54/x - Step 3: Cross multiply
1,386,465,453.58x = 1,913,527,679.58 × 877,875,438.54 - Step 4: Simplify right side
1,386,465,453.58x = 1,679,838,950,869,721,088 - Step 5: Solve for x
x = 1,679,838,950,869,721,088/1,386,465,453.58 - Step 6: Final answer
x = 1,211,598,130.00
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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.